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Ceres’s poles have shifted by as much as 36 degrees
A new analysis of Dawn data suggests that the poles of Ceres have wandered by as much as 36 degrees, and the data also adds further support for the existence of a liquid water layer between the dwarf planet’s crust and mantle.
“The most surprising aspect of this paper is to me the observation that the pole of Ceres must have followed an indirect path to its current pole. A multi-step reorientation could mean that the equatorial density anomaly was still evolving during the reorientation, and this could be because the crust and mantle were weakly rotationally coupled, allowing the crust to start reorienting while the mantle would lag behind,” Tricarico said. “If crust and mantle are allowed to shift with respect to one another, that could point to a layer of reduced friction between crust and mantle, and one of the possible mechanisms to reduce friction could be an ancient water ocean beneath the crust.”
In other words, the crust and mantle are not locked together. Imagine a baseball where the ballcover is not tightly held to the inner core, and slides around it. (Boy there are a lot of pitchers who wish they could get a hand on that baseball.) The cause of that looseness on Ceres is possibly because of a liquid layer in-between the crust and the mantle.
Need I note that there are uncertainties here?
A new analysis of Dawn data suggests that the poles of Ceres have wandered by as much as 36 degrees, and the data also adds further support for the existence of a liquid water layer between the dwarf planet’s crust and mantle.
“The most surprising aspect of this paper is to me the observation that the pole of Ceres must have followed an indirect path to its current pole. A multi-step reorientation could mean that the equatorial density anomaly was still evolving during the reorientation, and this could be because the crust and mantle were weakly rotationally coupled, allowing the crust to start reorienting while the mantle would lag behind,” Tricarico said. “If crust and mantle are allowed to shift with respect to one another, that could point to a layer of reduced friction between crust and mantle, and one of the possible mechanisms to reduce friction could be an ancient water ocean beneath the crust.”
In other words, the crust and mantle are not locked together. Imagine a baseball where the ballcover is not tightly held to the inner core, and slides around it. (Boy there are a lot of pitchers who wish they could get a hand on that baseball.) The cause of that looseness on Ceres is possibly because of a liquid layer in-between the crust and the mantle.
Need I note that there are uncertainties here?
Now available in hardback and paperback as well as ebook!
From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.
“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of founder of the Mars Society.
All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.
Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.
Sunspot update September 2018: Minimum!
NOAA yesterday released its monthly update of the solar cycle, covering sunspot activity for September 2018. As I have done every month since this website began in July 2011, I am posting it below, annotated to give it some context.
Sunspot activity on the Sun in September dropped slightly from August. More significantly, the activity continues to match closely the weak activity seen in 2008, when the Sun last went through its last solar minimum. We are unquestionably now in the new minimum, and its arrival in the past few months makes the now-ending solar cycle about one to two years shorter than predicted.
The graph above has been modified to show the predictions of the solar science community. The green curves show the community’s two original predictions from April 2007, with half the scientists predicting a very strong maximum and half predicting a weak one. The red curve is their revised May 2009 prediction.
As I noted last month, the NOAA graph is now getting very close to its right edge, which ends in December 2019. They will very soon have to update this graph so that it can take us into the next solar cycle.
What that new cycle will bring will be the next mystery. I have been following this cycle now since its unusual beginning, with a solar minimum much much longer and more inactive than any solar scientist had ever expected. We can only guess at the surprises the Sun will give us in the coming decade, especially since the science of solar sunspot activity remains superficial and in its infancy. We do not really understand why the Sun’s activity fluctuates. Nor do we understand why it periodically stops producing sunspots for long periods, resulting in what solar scientists call a grand minimum.
There are some scientists who think another grand minimum is coming. We shall have to wait and see. I certainly am going to follow their upcoming observations, as this work remains one of the great scientific studies humans are presently pursuing.
NOAA yesterday released its monthly update of the solar cycle, covering sunspot activity for September 2018. As I have done every month since this website began in July 2011, I am posting it below, annotated to give it some context.
Sunspot activity on the Sun in September dropped slightly from August. More significantly, the activity continues to match closely the weak activity seen in 2008, when the Sun last went through its last solar minimum. We are unquestionably now in the new minimum, and its arrival in the past few months makes the now-ending solar cycle about one to two years shorter than predicted.
The graph above has been modified to show the predictions of the solar science community. The green curves show the community’s two original predictions from April 2007, with half the scientists predicting a very strong maximum and half predicting a weak one. The red curve is their revised May 2009 prediction.
As I noted last month, the NOAA graph is now getting very close to its right edge, which ends in December 2019. They will very soon have to update this graph so that it can take us into the next solar cycle.
What that new cycle will bring will be the next mystery. I have been following this cycle now since its unusual beginning, with a solar minimum much much longer and more inactive than any solar scientist had ever expected. We can only guess at the surprises the Sun will give us in the coming decade, especially since the science of solar sunspot activity remains superficial and in its infancy. We do not really understand why the Sun’s activity fluctuates. Nor do we understand why it periodically stops producing sunspots for long periods, resulting in what solar scientists call a grand minimum.
There are some scientists who think another grand minimum is coming. We shall have to wait and see. I certainly am going to follow their upcoming observations, as this work remains one of the great scientific studies humans are presently pursuing.
The central peaks of Copernicus crater
Cool image time! Lunar Reconnaissance Orbiter science team has released a new image of the central peaks of Copernicus Crater, shown on the right cropped and reduced in resolution.
Copernicus (9.62°N, 339.92°E), which is easily seen with a moderately powerful backyard telescope, is one of the best-known craters on the Moon. Despite its age (around 860 million years), it is well preserved with over 4000 meters of relief from floor to rim, and the tallest of its central peaks rises approximately 1300 meters above the crater floor. This image, centered on the central peaks, was captured just after dawn (86° incidence angle) as the Lunar Reconnaissance Orbiter slewed west to a 67°angle.
The image is similar to one taken back in 2012, but has a higher resolution because it was shot from 50 miles elevation instead of 75.
This crater was also the subject of one of the first breath-taking images ever taken of the Moon from lunar orbit, by Lunar Orbiter in November 1966.
The wider view taken by LRO gives some context for the image above. The peaks shown in closeup here are part of the lower right grouping. If you go to the first link above you can zoom in and explore all parts of the full image, and see some quite amazing details, including the large boulders scatter throughout the hollows between the peaks.
Cool image time! Lunar Reconnaissance Orbiter science team has released a new image of the central peaks of Copernicus Crater, shown on the right cropped and reduced in resolution.
Copernicus (9.62°N, 339.92°E), which is easily seen with a moderately powerful backyard telescope, is one of the best-known craters on the Moon. Despite its age (around 860 million years), it is well preserved with over 4000 meters of relief from floor to rim, and the tallest of its central peaks rises approximately 1300 meters above the crater floor. This image, centered on the central peaks, was captured just after dawn (86° incidence angle) as the Lunar Reconnaissance Orbiter slewed west to a 67°angle.
The image is similar to one taken back in 2012, but has a higher resolution because it was shot from 50 miles elevation instead of 75.
This crater was also the subject of one of the first breath-taking images ever taken of the Moon from lunar orbit, by Lunar Orbiter in November 1966.
The wider view taken by LRO gives some context for the image above. The peaks shown in closeup here are part of the lower right grouping. If you go to the first link above you can zoom in and explore all parts of the full image, and see some quite amazing details, including the large boulders scatter throughout the hollows between the peaks.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Giant ice pinnacles on Europa
In a new paper scientists note that getting the congressionally mandated Europa Clipper safely to the surface of Jupiter’s moon might be threatened by the existence there of forests of giant five-story high ice pinnacles.
Probes have shown that Europa’s ice-bound surface is riven with fractures and ridges, and new work published today in Nature Geosciences suggests any robotic lander could face a nasty surprise, in the form of vast fields of ice spikes, each standing as tall as a semitruck is long.
Such spikes are created on Earth in the frigid tropical peaks of the Andes Mountains, where they are called “pentinentes,” for their resemblance to devout white-clad monks. First described by Charles Darwin, pentinentes are sculpted by the sun in frozen regions that experience no melt; instead, the fixed patterns of light cause the ice to directly vaporize, amplifying minute surface variations that result in small hills and shadowed hollows. These dark hollows absorb more sunlight than the bright peaks around them, vaporizing down further in a feedback loop.
This work is based on computer models, so it has a lot of uncertainty. It also appears to assume that these pentinentes will be widespread across Europa’s equatorial regions, something so unlikely I find it embarrassing that they even imply it. I guarantee Europa’s surface will be more varied than that. If they are designing Europa Clipper properly, it will go into orbit first to scout out the best landing site, and will be able to avoid such hazards.
In a new paper scientists note that getting the congressionally mandated Europa Clipper safely to the surface of Jupiter’s moon might be threatened by the existence there of forests of giant five-story high ice pinnacles.
Probes have shown that Europa’s ice-bound surface is riven with fractures and ridges, and new work published today in Nature Geosciences suggests any robotic lander could face a nasty surprise, in the form of vast fields of ice spikes, each standing as tall as a semitruck is long.
Such spikes are created on Earth in the frigid tropical peaks of the Andes Mountains, where they are called “pentinentes,” for their resemblance to devout white-clad monks. First described by Charles Darwin, pentinentes are sculpted by the sun in frozen regions that experience no melt; instead, the fixed patterns of light cause the ice to directly vaporize, amplifying minute surface variations that result in small hills and shadowed hollows. These dark hollows absorb more sunlight than the bright peaks around them, vaporizing down further in a feedback loop.
This work is based on computer models, so it has a lot of uncertainty. It also appears to assume that these pentinentes will be widespread across Europa’s equatorial regions, something so unlikely I find it embarrassing that they even imply it. I guarantee Europa’s surface will be more varied than that. If they are designing Europa Clipper properly, it will go into orbit first to scout out the best landing site, and will be able to avoid such hazards.
Competing proposals for military space operations
Turf war! Even as Trump is pushing for a new Space Force, the military bureaucracy is proposing competing proposals for rearranging its space bureaucracy.
Some of the details are a bit in the weeds but the following lays out some of the basics
Griffin and Wilson take very different approaches.
In her memo, Wilson suggests the Space Development Agency should be organized under the existing Space Rapid Capabilities Office and that it should be geographically and organizationally connected to U.S. Space Command. She recommends using “existing structures designed and chartered to acquire capabilities rapidly, rather than establishing new structures.”
Griffin is proposing a new D.C.-based agency with a staff of 112 government personnel that would report to him initially, but eventually would shift to the control of a new assistant secretary of defense for space, an office that would first have to be approved by Congress.
In Wilson’s plan, the Space Development Agency and other acquisition organizations would transition to the new Department of the Space Force. She pointedly pushes back on the idea of having an assistant secretary of defense for space or a Space Development Agency that reports to that office. She argues that such a setup would create additional bureaucracy that would be removed from the operators who use and maintain the equipment.
Griffin, a former NASA administrator, seems more focused in his proposal in transitioning the military towards using private commercial assets rather than building its own, but his apparent love for building his own empire might work against that stated goal.
Turf war! Even as Trump is pushing for a new Space Force, the military bureaucracy is proposing competing proposals for rearranging its space bureaucracy.
Some of the details are a bit in the weeds but the following lays out some of the basics
Griffin and Wilson take very different approaches.
In her memo, Wilson suggests the Space Development Agency should be organized under the existing Space Rapid Capabilities Office and that it should be geographically and organizationally connected to U.S. Space Command. She recommends using “existing structures designed and chartered to acquire capabilities rapidly, rather than establishing new structures.”
Griffin is proposing a new D.C.-based agency with a staff of 112 government personnel that would report to him initially, but eventually would shift to the control of a new assistant secretary of defense for space, an office that would first have to be approved by Congress.
In Wilson’s plan, the Space Development Agency and other acquisition organizations would transition to the new Department of the Space Force. She pointedly pushes back on the idea of having an assistant secretary of defense for space or a Space Development Agency that reports to that office. She argues that such a setup would create additional bureaucracy that would be removed from the operators who use and maintain the equipment.
Griffin, a former NASA administrator, seems more focused in his proposal in transitioning the military towards using private commercial assets rather than building its own, but his apparent love for building his own empire might work against that stated goal.
There are now only 3 copies left of the now out-of-print hardback of Leaving Earth. The price for an autographed copy of this rare collector's item is now $150 (plus $5 shipping).
To get your copy while the getting is good, please send a $155 check (which includes $5 shipping) payable to Robert Zimmerman to
Behind The Black, c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652
Leaving Earth is also available as an inexpensive ebook!
Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.
If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.
Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke
Hubble in safe mode, down to two gyroscopes
The end might be near: The Hubble Space Telescope went into safe mode this weekend when one of its three working gyroscopes failed.
Hubble has six gyroscopes, all of which were replaced by spacewalking astronauts during a servicing mission in May 2009. The telescope needs three working gyroscopes to “ensure optimal efficiency,” mission team members have written, and the failure brings that number down to two (if the “problematic” one that had been off can’t be brought back online).
But that doesn’t mean it’s time to panic. Hubble can do good science with two gyroscopes, or even one, astrophysicist Grant Tremblay, of the Harvard-Smithsonian Center for Astrophysics, said via Twitter Sunday.
While it is true that Hubble can do science on one or two gyroscopes, in that mode it will no longer be able to take the sharp spectacular pictures that represent its great glory.
Hubble was launched in 1990, fixed in 1993, and has been the most successful science robot ever launched. Scientists had hoped, when they made the James Webb Space Telescope their priority in the very early 2000s that both would be in space and operating to provide top notch science data, with Hubble working in visible wavelengths and Webb in the infrared. Webb’s endless delays and cost overruns has now probably made that impossible.
Worse, there are no plans to build a replacement for Hubble. For the first time since 1993, the human race will no longer be able to see, with our own eyes, the universe sharply.
The end might be near: The Hubble Space Telescope went into safe mode this weekend when one of its three working gyroscopes failed.
Hubble has six gyroscopes, all of which were replaced by spacewalking astronauts during a servicing mission in May 2009. The telescope needs three working gyroscopes to “ensure optimal efficiency,” mission team members have written, and the failure brings that number down to two (if the “problematic” one that had been off can’t be brought back online).
But that doesn’t mean it’s time to panic. Hubble can do good science with two gyroscopes, or even one, astrophysicist Grant Tremblay, of the Harvard-Smithsonian Center for Astrophysics, said via Twitter Sunday.
While it is true that Hubble can do science on one or two gyroscopes, in that mode it will no longer be able to take the sharp spectacular pictures that represent its great glory.
Hubble was launched in 1990, fixed in 1993, and has been the most successful science robot ever launched. Scientists had hoped, when they made the James Webb Space Telescope their priority in the very early 2000s that both would be in space and operating to provide top notch science data, with Hubble working in visible wavelengths and Webb in the infrared. Webb’s endless delays and cost overruns has now probably made that impossible.
Worse, there are no plans to build a replacement for Hubble. For the first time since 1993, the human race will no longer be able to see, with our own eyes, the universe sharply.
SpaceX successfully launches Argentinian radar satellite
Capitalism in space: SpaceX today successfully launched an Argentinian radar satellite, while also achieving the first on-land first stage recovery at Vandenberg.
The first stage was a Block 5 that was used and landed on a barge in July, meaning they turned it around in about two months, the fastest turn-around on the West Coast. With this successful landing on land at Vandenberg, they will able to speed up that turn-around time considerably in the future.
The leaders in the 2018 launch race:
26 China
17 SpaceX
8 Russia
7 ULA
6 Europe (Arianespace)
China remains the leader in the national rankings, 26 to 25, over the United States.
Capitalism in space: SpaceX today successfully launched an Argentinian radar satellite, while also achieving the first on-land first stage recovery at Vandenberg.
The first stage was a Block 5 that was used and landed on a barge in July, meaning they turned it around in about two months, the fastest turn-around on the West Coast. With this successful landing on land at Vandenberg, they will able to speed up that turn-around time considerably in the future.
The leaders in the 2018 launch race:
26 China
17 SpaceX
8 Russia
7 ULA
6 Europe (Arianespace)
China remains the leader in the national rankings, 26 to 25, over the United States.
October 5, 2018 Zimmerman/Batchelor podcast
NASA pushes upgrades to interim and final SLS upper stages
Because of increased funding to SLS from Congress, NASA is now pushing Boeing to do upgrades to the interim SLS upper stage as well as its final full power upper stage, dubbed the Exploration Upper Stage (EUS) and originally planned for most SLS missions.
Those changes were prompted by the decision NASA made earlier this year to delay the introduction of the EUS. That stage was originally planned to enter use with the second SLS mission, Exploration Mission (EM) 2. Instead, the first flight of what’s known as the Block 1B configuration of SLS has been delayed to the fourth SLS launch, likely no earlier than 2024.
“That has put a slow down on the Exploration Upper Stage work,” said (John Shannon, vice president and program manager for the Space Launch System at Boeing). “We were rapidly approaching the critical design review.”
NASA has asked Boeing to spend some time to try and “optimize” the EUS with the goal of increasing the amount of additional payload it can carry. Such co-manifested payloads, such as modules for NASA’s proposed lunar Gateway, would be carried on the SLS underneath the Orion spacecraft. (emphasis mine)
Shannon also made what might be the biggest understatement I have ever heard when asked about SLS’s endless delays, noting that “We underestimated that somewhat,” referring to the time it has taken to build the rocket.
NASA got Congress to give them extra money to allow more flights of the interim stage, since putting humans on EUS on its first flight was absurdly risky. This way they could also avoid further delays on that first SLS/Orion manned mission, now set for 2023, almost twenty years since it was first proposed. By pushing for more upgrades, they can also justify again stretching the program out longer, thus stretching out the pork without actually flying anything.
The contrast with SpaceX’s development of Falcon Heavy with NASA’s development of SLS continues to be striking. The former was conceived, built, and launched in less than ten years, for a cost of half a billion. The latter remains unflown and unready to fly after fourteen years of development, and likely will not fly for another six years plus. And its development cost will likely top $50 billion by that time.
If I was a customer looking to buy a product, I would laugh NASA out of the room if it tried to sell me its SLS rocket. Unfortunately, the critters in Congress aren’t that smart, and continue to pour money into this dead end project, money that could be much more effectively spent buying rockets from the private sector.
Because of increased funding to SLS from Congress, NASA is now pushing Boeing to do upgrades to the interim SLS upper stage as well as its final full power upper stage, dubbed the Exploration Upper Stage (EUS) and originally planned for most SLS missions.
Those changes were prompted by the decision NASA made earlier this year to delay the introduction of the EUS. That stage was originally planned to enter use with the second SLS mission, Exploration Mission (EM) 2. Instead, the first flight of what’s known as the Block 1B configuration of SLS has been delayed to the fourth SLS launch, likely no earlier than 2024.
“That has put a slow down on the Exploration Upper Stage work,” said (John Shannon, vice president and program manager for the Space Launch System at Boeing). “We were rapidly approaching the critical design review.”
NASA has asked Boeing to spend some time to try and “optimize” the EUS with the goal of increasing the amount of additional payload it can carry. Such co-manifested payloads, such as modules for NASA’s proposed lunar Gateway, would be carried on the SLS underneath the Orion spacecraft. (emphasis mine)
Shannon also made what might be the biggest understatement I have ever heard when asked about SLS’s endless delays, noting that “We underestimated that somewhat,” referring to the time it has taken to build the rocket.
NASA got Congress to give them extra money to allow more flights of the interim stage, since putting humans on EUS on its first flight was absurdly risky. This way they could also avoid further delays on that first SLS/Orion manned mission, now set for 2023, almost twenty years since it was first proposed. By pushing for more upgrades, they can also justify again stretching the program out longer, thus stretching out the pork without actually flying anything.
The contrast with SpaceX’s development of Falcon Heavy with NASA’s development of SLS continues to be striking. The former was conceived, built, and launched in less than ten years, for a cost of half a billion. The latter remains unflown and unready to fly after fourteen years of development, and likely will not fly for another six years plus. And its development cost will likely top $50 billion by that time.
If I was a customer looking to buy a product, I would laugh NASA out of the room if it tried to sell me its SLS rocket. Unfortunately, the critters in Congress aren’t that smart, and continue to pour money into this dead end project, money that could be much more effectively spent buying rockets from the private sector.
Sixth biggest Michigan meteorite discovered as doorstop
The sixth biggest Michigan meteorite ever discovered had been used as a doorstop for decades and was only identified when its present owner got curious and had it inspected by scientists.
Central Michigan University says Thursday that the 22.5-pound space rock was recently identified by Department of Earth and Atmospheric Sciences professor Dr. Monaliza Sirbescu after the owner “brought it to her out of curiosity.” The Grand Rapids man was apparently inspired to investigate after seeing news of meteorite hunters finding shards and selling them for thousands of dollars after a meteor sighting in January in the Detroit area.
The chunk of iron and nickel was later valued at $100,000 after the Smithsonian Institution verified the find, CMU said in a release. The rock, which was initially used as a doorstop in the Edmore area for several decades after a farmer recovered it sometime in the 1930s, turned out to be Michigan’s sixth-largest meteorite, a university spokesperson said.
Hat tip Wayne DeVette.
The sixth biggest Michigan meteorite ever discovered had been used as a doorstop for decades and was only identified when its present owner got curious and had it inspected by scientists.
Central Michigan University says Thursday that the 22.5-pound space rock was recently identified by Department of Earth and Atmospheric Sciences professor Dr. Monaliza Sirbescu after the owner “brought it to her out of curiosity.” The Grand Rapids man was apparently inspired to investigate after seeing news of meteorite hunters finding shards and selling them for thousands of dollars after a meteor sighting in January in the Detroit area.
The chunk of iron and nickel was later valued at $100,000 after the Smithsonian Institution verified the find, CMU said in a release. The rock, which was initially used as a doorstop in the Edmore area for several decades after a farmer recovered it sometime in the 1930s, turned out to be Michigan’s sixth-largest meteorite, a university spokesperson said.
Hat tip Wayne DeVette.
Data from Voyager 2 suggests it is entering interstellar space
New data since August from Voyager 2 now suggests it is finally leaving the heliosphere of the solar system and entering interstellar space.
Since late August, the Cosmic Ray Subsystem instrument on Voyager 2 has measured about a 5 percent increase in the rate of cosmic rays hitting the spacecraft compared to early August. The probe’s Low-Energy Charged Particle instrument has detected a similar increase in higher-energy cosmic rays.
Cosmic rays are fast-moving particles that originate outside the solar system. Some of these cosmic rays are blocked by the heliosphere, so mission planners expect that Voyager 2 will measure an increase in the rate of cosmic rays as it approaches and crosses the boundary of the heliosphere.
In May 2012, Voyager 1 experienced an increase in the rate of cosmic rays similar to what Voyager 2 is now detecting. That was about three months before Voyager 1 crossed the heliopause and entered interstellar space.
The scientists warn that there is great uncertainty here, and that the actual transition into interstellar space might take longer than with Voyager 1 since Voyager 2 is traveling in a different direction and is leaving during a different time in the solar cycle.
New data since August from Voyager 2 now suggests it is finally leaving the heliosphere of the solar system and entering interstellar space.
Since late August, the Cosmic Ray Subsystem instrument on Voyager 2 has measured about a 5 percent increase in the rate of cosmic rays hitting the spacecraft compared to early August. The probe’s Low-Energy Charged Particle instrument has detected a similar increase in higher-energy cosmic rays.
Cosmic rays are fast-moving particles that originate outside the solar system. Some of these cosmic rays are blocked by the heliosphere, so mission planners expect that Voyager 2 will measure an increase in the rate of cosmic rays as it approaches and crosses the boundary of the heliosphere.
In May 2012, Voyager 1 experienced an increase in the rate of cosmic rays similar to what Voyager 2 is now detecting. That was about three months before Voyager 1 crossed the heliopause and entered interstellar space.
The scientists warn that there is great uncertainty here, and that the actual transition into interstellar space might take longer than with Voyager 1 since Voyager 2 is traveling in a different direction and is leaving during a different time in the solar cycle.
Images of Mascot by Hayabusa released
The Hayabusa-2 science team today released images taken of MASCOT as it descended to the surface of Ryugu, including images showing where it landed.
In the image on the right, reduced slightly to post here, you can see MASCOT as it slowly moves downward towards the asteroid shortly after its release from Hayabusa-2. At the link there is another image showing the mini-lander as a white dot when it was still about 115 feet above the surface. Other images show its location on the surface where it operated for seventeen hours and completed three hops.
The next big event from Hayabusa-2 will be the spacecraft’s own landing, sometime later this month.
The Hayabusa-2 science team today released images taken of MASCOT as it descended to the surface of Ryugu, including images showing where it landed.
In the image on the right, reduced slightly to post here, you can see MASCOT as it slowly moves downward towards the asteroid shortly after its release from Hayabusa-2. At the link there is another image showing the mini-lander as a white dot when it was still about 115 feet above the surface. Other images show its location on the surface where it operated for seventeen hours and completed three hops.
The next big event from Hayabusa-2 will be the spacecraft’s own landing, sometime later this month.
New Horizons makes final big course correction
New Horizons this week successfully made its final major course correction in preparation for its January 1st fly-by of the Kuiper Belt object the science team has dubbed Ultima Thule.
NASA’s New Horizons spacecraft carried out a short engine burn on Oct. 3 to home in on the location and timing of its New Year’s flyby of the Kuiper Belt object nicknamed Ultima Thule.
Word from the spacecraft that it had successfully performed the 3½-minute maneuver reached mission operations at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, at around 10:20 p.m. EDT. The maneuver slightly tweaked the spacecraft’s trajectory and bumped its speed by 2.1 meters per second – just about 4.6 miles per hour – keeping it on track to fly past Ultima (officially named 2014 MU69) at 12:33 am EST on Jan. 1, 2019.
As the spacecraft gets closer they will do more refinements, but right now they are a very precise course. The January 1st fly-by will end a spectacular fall season of planetary mission rendezvous, landings, fly-bys and sample gatherings.
Posted from Chicago.
New Horizons this week successfully made its final major course correction in preparation for its January 1st fly-by of the Kuiper Belt object the science team has dubbed Ultima Thule.
NASA’s New Horizons spacecraft carried out a short engine burn on Oct. 3 to home in on the location and timing of its New Year’s flyby of the Kuiper Belt object nicknamed Ultima Thule.
Word from the spacecraft that it had successfully performed the 3½-minute maneuver reached mission operations at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, at around 10:20 p.m. EDT. The maneuver slightly tweaked the spacecraft’s trajectory and bumped its speed by 2.1 meters per second – just about 4.6 miles per hour – keeping it on track to fly past Ultima (officially named 2014 MU69) at 12:33 am EST on Jan. 1, 2019.
As the spacecraft gets closer they will do more refinements, but right now they are a very precise course. The January 1st fly-by will end a spectacular fall season of planetary mission rendezvous, landings, fly-bys and sample gatherings.
Posted from Chicago.
Punch Brothers & Rob Moose – Brandenburg Concerto No. 3
An evening pause: Performed live at the 2012 Telluride Bluegrass Festival, demonstrating that there really is a link between baroque music and American bluegrass. The fiddlers who came to early America had been trained to play this kind of music.
Hat tip Danae.
IAU names two craters in honor of 50th anniversary Apollo 8 mission
The International Astronautical Union has named two craters “8 Homeward” and “Anders’ Earthrise,” both visible in astronaut Bill Anders iconic Earthrise image, in honor of the upcoming fiftieth anniversary of the Apollo 8 mission to the Moon.
The Working Group for Planetary System Nomenclature of the International Astronomical Union has today officially approved the naming of two craters on the Moon to commemorate the 50th anniversary of the Apollo 8 mission. The names are Anders’ Earthrise and 8 Homeward.
The newly named craters are visible in the foreground of the iconic Earthrise colour photograph taken by astronaut William Anders. It depicts the moment that our shiny blue Earth came back into view as the spacecraft emerged out of the dark from behind the grey and barren Moon. This is arguably the most famous picture taken by Apollo 8. It became iconic and has been credited with starting the environmental movement.
The image is to the right, with the two craters indicated. I have rotated the image so that the horizon is on the right, since is how Anders took it. As I noted in Genesis: the Story of Apollo 8 (now available as both an ebook and audiobook),
Bill Anders’ photograph of earthrise, taken on December 24, 1968, possibly one of the most reprinted photographs ever taken. The way it is usually reproduced, however, with the Moon’s horizon at the bottom, is not how Bill Anders took it.
Instead, the way it is shown on the cover of Genesis: the Story of Apollo 8 is the way he framed it, with the Moon’s horizon on the right. This is also how it is framed at Bill Anders’s home, which also was the first time I had ever seen it oriented that way. When I asked Anders why it was framed that way, he answered, “That’s how I took it.”
To Anders, floating in zero gravity, the earth wasn’t rising from behind an horizon line (which is how a human living on a planet’s surface would perceive it). Instead, floating in a space capsule seventy miles above the moon, Anders saw himself circling the moon’s equator. The lunar horizon therefore appeared vertical to him, and the earth moved right to left as it came out from behind the moon.
In 1968 the IAU had refused to accept some of the astronauts’ naming choices. This honor now somewhat corrects that injustice.
UPDATE: One more historical note: On Saturday there will be a 50th Reunion Dinner for the Apollo 8 astronauts at the Museum of Science and Industry in Chicago. I will be attending, so today is a travel day.
The International Astronautical Union has named two craters “8 Homeward” and “Anders’ Earthrise,” both visible in astronaut Bill Anders iconic Earthrise image, in honor of the upcoming fiftieth anniversary of the Apollo 8 mission to the Moon.
The Working Group for Planetary System Nomenclature of the International Astronomical Union has today officially approved the naming of two craters on the Moon to commemorate the 50th anniversary of the Apollo 8 mission. The names are Anders’ Earthrise and 8 Homeward.
The newly named craters are visible in the foreground of the iconic Earthrise colour photograph taken by astronaut William Anders. It depicts the moment that our shiny blue Earth came back into view as the spacecraft emerged out of the dark from behind the grey and barren Moon. This is arguably the most famous picture taken by Apollo 8. It became iconic and has been credited with starting the environmental movement.
The image is to the right, with the two craters indicated. I have rotated the image so that the horizon is on the right, since is how Anders took it. As I noted in Genesis: the Story of Apollo 8 (now available as both an ebook and audiobook),
Bill Anders’ photograph of earthrise, taken on December 24, 1968, possibly one of the most reprinted photographs ever taken. The way it is usually reproduced, however, with the Moon’s horizon at the bottom, is not how Bill Anders took it.
Instead, the way it is shown on the cover of Genesis: the Story of Apollo 8 is the way he framed it, with the Moon’s horizon on the right. This is also how it is framed at Bill Anders’s home, which also was the first time I had ever seen it oriented that way. When I asked Anders why it was framed that way, he answered, “That’s how I took it.”
To Anders, floating in zero gravity, the earth wasn’t rising from behind an horizon line (which is how a human living on a planet’s surface would perceive it). Instead, floating in a space capsule seventy miles above the moon, Anders saw himself circling the moon’s equator. The lunar horizon therefore appeared vertical to him, and the earth moved right to left as it came out from behind the moon.
In 1968 the IAU had refused to accept some of the astronauts’ naming choices. This honor now somewhat corrects that injustice.
UPDATE: One more historical note: On Saturday there will be a 50th Reunion Dinner for the Apollo 8 astronauts at the Museum of Science and Industry in Chicago. I will be attending, so today is a travel day.
MASCOT ends its mission on Ryugu, as planned
Hayabusa-2’s mini-lander MASCOT has ended its mission on Ryugu after seventeen hours, slightly longer than the planned sixteen hours.
The lander made one hop, and successfully transmitted all its data back to Hayabusa-2, which still has one more mini-lander on board that will be sent to Ryugu’s surface, probably after Hayabusa-2 makes its own landing.
Meanwhile, the two Minerva-2 bouncers continue to operate on Ryugu.
Hayabusa-2’s mini-lander MASCOT has ended its mission on Ryugu after seventeen hours, slightly longer than the planned sixteen hours.
The lander made one hop, and successfully transmitted all its data back to Hayabusa-2, which still has one more mini-lander on board that will be sent to Ryugu’s surface, probably after Hayabusa-2 makes its own landing.
Meanwhile, the two Minerva-2 bouncers continue to operate on Ryugu.
Commercial crew test flights delayed again
NASA today released an updated schedule for the Dragon and Starliner test flights, indicating the first Dragon flight has been pushed to January 2019.
- SpaceX Demo-1 uncrewed flight test: January 2019 (delayed from November 2018)
- Boeing uncrewed Orbital Flight Test: March 2019 (delayed from late 2018/early 2019)
- SpaceX Demo-2 crewed flight test: June 2019 (delayed from April 2019)
- Boeing Crew Flight Test: August 2019 (nominally still in mid-2019 as earlier stated)
It appears from the article that SpaceX was prepared to fly its first flight in December, meaning only a one month delay, but scheduling conflicts at ISS forced them to push it to January.
With the Boeing flights, the scheduling has less to do with delays and more do to do with setting more precise launch dates.
NASA today released an updated schedule for the Dragon and Starliner test flights, indicating the first Dragon flight has been pushed to January 2019.
- SpaceX Demo-1 uncrewed flight test: January 2019 (delayed from November 2018)
- Boeing uncrewed Orbital Flight Test: March 2019 (delayed from late 2018/early 2019)
- SpaceX Demo-2 crewed flight test: June 2019 (delayed from April 2019)
- Boeing Crew Flight Test: August 2019 (nominally still in mid-2019 as earlier stated)
It appears from the article that SpaceX was prepared to fly its first flight in December, meaning only a one month delay, but scheduling conflicts at ISS forced them to push it to January.
With the Boeing flights, the scheduling has less to do with delays and more do to do with setting more precise launch dates.
The Crying Shame – Camel
Democratic doxxer threatened to also release the health data of the children of Republicans
They’re coming for you next: The Democratic congressional aide who has been arrested for releasing private information of at least three Republican elected officials also threatened to release the health information and social security numbers of their children if anyone turned him in.
Jackson Cosko, who recently worked for Rep. Sheila Jackson Lee, D-Texas, was arrested for allegedly posting the personal information (or “doxxing”) of a number of senators including Lindsey Graham, R-S.C., Mike Lee, R-Utah, and Orrin Hatch, R-Utah on Wikipedia — with information such as their home addresses and phone numbers. Graham, Lee and Hatch’s information was published on Thursday.
According to a sworn statement by Capitol Police Captain Jason Bell, a witness Tuesday saw Cosko at a computer in a senator’s office, where he used to work, a day after two other unnamed senators’ information had been put on Wikipedia. Cosko worked for other Democratic senators including Sen. Dianne Feinstein, D-Calif., Sen. Maggie Hassan, D-N.H., and former Sen. Barbara Boxer, D-Calif. While earlier reports identified Cosko as an intern for Jackson Lee, his lawyer said that he was working as a fellow in her office, paid by an outside institution.
Sources familiar with the case tell Fox News Cosko was in Sen. Hassan’s office, where he was caught using a login he was not authorized to use. Cosko earlier was let go by Senator Hassan’s office. A spokesman for Hassan says she “strongly denounces the alleged actions.”
According to Bell’s statement, Cosko is alleged to have been confronted by the staffer and then walked out. Hours later the witness received an email from “livefreeorpwn@gmail.com” saying: “If you tell anyone I will leak it all. Emails signal conversations gmails. Senators children’s health information and socials.”
While his actions have been disavowed by the Democratic lawmakers for whom he worked, his actions reveal once again the fascist and hateful culture that presently permeates the entire left. They are willing to do you real harm, and if that doesn’t make you shut up and stop opposing them, they will go after your children.
Don’t believe me? You still think this is only a rare exception? Then read this letter from the wife of Senator Rand Paul (R-Kentucky):
Paul wrote Wednesday that she and her family had “experienced violence and threats of violence at a horrifying level” over the past 18 months. “I now keep a loaded gun by my bed,” she said. “Our security systems have had to be expanded. I have never felt this way in my life.”
For decades the Democrats have allowed this kind of behavior to go unpunished. It is now getting out of their control. Bad things are coming. If you don’t tow the leftist line, get ready. Be prepared. You will need to defend not only yourself, but all your loved ones.
They’re coming for you next: The Democratic congressional aide who has been arrested for releasing private information of at least three Republican elected officials also threatened to release the health information and social security numbers of their children if anyone turned him in.
Jackson Cosko, who recently worked for Rep. Sheila Jackson Lee, D-Texas, was arrested for allegedly posting the personal information (or “doxxing”) of a number of senators including Lindsey Graham, R-S.C., Mike Lee, R-Utah, and Orrin Hatch, R-Utah on Wikipedia — with information such as their home addresses and phone numbers. Graham, Lee and Hatch’s information was published on Thursday.
According to a sworn statement by Capitol Police Captain Jason Bell, a witness Tuesday saw Cosko at a computer in a senator’s office, where he used to work, a day after two other unnamed senators’ information had been put on Wikipedia. Cosko worked for other Democratic senators including Sen. Dianne Feinstein, D-Calif., Sen. Maggie Hassan, D-N.H., and former Sen. Barbara Boxer, D-Calif. While earlier reports identified Cosko as an intern for Jackson Lee, his lawyer said that he was working as a fellow in her office, paid by an outside institution.
Sources familiar with the case tell Fox News Cosko was in Sen. Hassan’s office, where he was caught using a login he was not authorized to use. Cosko earlier was let go by Senator Hassan’s office. A spokesman for Hassan says she “strongly denounces the alleged actions.”
According to Bell’s statement, Cosko is alleged to have been confronted by the staffer and then walked out. Hours later the witness received an email from “livefreeorpwn@gmail.com” saying: “If you tell anyone I will leak it all. Emails signal conversations gmails. Senators children’s health information and socials.”
While his actions have been disavowed by the Democratic lawmakers for whom he worked, his actions reveal once again the fascist and hateful culture that presently permeates the entire left. They are willing to do you real harm, and if that doesn’t make you shut up and stop opposing them, they will go after your children.
Don’t believe me? You still think this is only a rare exception? Then read this letter from the wife of Senator Rand Paul (R-Kentucky):
Paul wrote Wednesday that she and her family had “experienced violence and threats of violence at a horrifying level” over the past 18 months. “I now keep a loaded gun by my bed,” she said. “Our security systems have had to be expanded. I have never felt this way in my life.”
For decades the Democrats have allowed this kind of behavior to go unpunished. It is now getting out of their control. Bad things are coming. If you don’t tow the leftist line, get ready. Be prepared. You will need to defend not only yourself, but all your loved ones.
A vent on Mars?
Cool image time! In their exploration of the surface of Mars using Mars Reconnaissance Orbiter (MRO), scientists often image geological features that strongly resemble Earth features. Sometimes, if real, the resemblances are significant, as they indicate important geological activity on Mars that can tell us a lot about the conditions and environment there.
The image on the right, cropped and reduced in resolution to post here, is a good example of this. It was taken by MRO on June 14, 2018, just before the global dust storm obscured the planet’s middle latitudes for most of the summer, and was part of the monthly release of new images from the spacecraft. (If you click on the image you can see the full resolution picture.) The release website, which includes no caption, describes this feature as an “apparent vent,” a determination that certainly seems reasonable. The shadowed dark features suggest an abrupt oblong pit near the edge of a cliff, formed in the center of a collapsed sink. The tear-drop shape of the collapse sink and surrounding darkened areas also suggests that something is venting from it and then blowing away to the east and south, forming the darker stained ground. Some of the dark features to the southeast might also be smaller vents, releasing their own materials into the atmosphere.
The location also reinforces this suggestion, located on the southeast lava slopes of one of Mars’ larger volcanoes, Elysium Mons. This is also a region, dubbed Athabasca Valles, that some planetary scientists believe is one of the youngest lava flows on Mars.
Finally, it appears that the pit here has darkened considerably recently. MRO has taken images of this pit twice previously, in 2008 and 2010, and in both images the pit is much lighter in color, with its sandy dune-covered floor much easier to see. In the new image the floor is now very dark. This might be caused by shadows and the angle of the Sun, but I don’t believe so. It is also clear when comparing all three images that the surrounding area, including the flow to the southeast, has also darkened with time.
All this data suggests that the pit is venting something into the air, and it is settling on the ground to the southeast, blown there by the prevailing winds. Nor is this pit the only such feature in this region. Other images by MRO show a lot of similar dark splotches.
The problem is that this feature is not on Earth but on Mars. Determining what is being vented, and why, is therefore made more difficult. Based on Earth data you would assume this is some form of volcanic vent, releasing gases from below the surface. On Mars that assumption might not hold. We might instead be seeing the venting of any number of possible materials, such as underground water-ice, carrying with it other underground materials and thus darkening the surface.
We also can’t assume that the venting is occurring because of volcanic processes. On Mars the evidence so far gathered suggests that active volcanic activity ceased a very long time ago, even for this very young lava region. The venting is likely caused by something else, a fact that in itself is probably the most significant take-away from these images.
Something appears to be causing an active vent on the surface of Mars. Finding out the root cause of that venting is probably one of the more interesting questions facing researchers who study the Martian surface.
Cool image time! In their exploration of the surface of Mars using Mars Reconnaissance Orbiter (MRO), scientists often image geological features that strongly resemble Earth features. Sometimes, if real, the resemblances are significant, as they indicate important geological activity on Mars that can tell us a lot about the conditions and environment there.
The image on the right, cropped and reduced in resolution to post here, is a good example of this. It was taken by MRO on June 14, 2018, just before the global dust storm obscured the planet’s middle latitudes for most of the summer, and was part of the monthly release of new images from the spacecraft. (If you click on the image you can see the full resolution picture.) The release website, which includes no caption, describes this feature as an “apparent vent,” a determination that certainly seems reasonable. The shadowed dark features suggest an abrupt oblong pit near the edge of a cliff, formed in the center of a collapsed sink. The tear-drop shape of the collapse sink and surrounding darkened areas also suggests that something is venting from it and then blowing away to the east and south, forming the darker stained ground. Some of the dark features to the southeast might also be smaller vents, releasing their own materials into the atmosphere.
The location also reinforces this suggestion, located on the southeast lava slopes of one of Mars’ larger volcanoes, Elysium Mons. This is also a region, dubbed Athabasca Valles, that some planetary scientists believe is one of the youngest lava flows on Mars.
Finally, it appears that the pit here has darkened considerably recently. MRO has taken images of this pit twice previously, in 2008 and 2010, and in both images the pit is much lighter in color, with its sandy dune-covered floor much easier to see. In the new image the floor is now very dark. This might be caused by shadows and the angle of the Sun, but I don’t believe so. It is also clear when comparing all three images that the surrounding area, including the flow to the southeast, has also darkened with time.
All this data suggests that the pit is venting something into the air, and it is settling on the ground to the southeast, blown there by the prevailing winds. Nor is this pit the only such feature in this region. Other images by MRO show a lot of similar dark splotches.
The problem is that this feature is not on Earth but on Mars. Determining what is being vented, and why, is therefore made more difficult. Based on Earth data you would assume this is some form of volcanic vent, releasing gases from below the surface. On Mars that assumption might not hold. We might instead be seeing the venting of any number of possible materials, such as underground water-ice, carrying with it other underground materials and thus darkening the surface.
We also can’t assume that the venting is occurring because of volcanic processes. On Mars the evidence so far gathered suggests that active volcanic activity ceased a very long time ago, even for this very young lava region. The venting is likely caused by something else, a fact that in itself is probably the most significant take-away from these images.
Something appears to be causing an active vent on the surface of Mars. Finding out the root cause of that venting is probably one of the more interesting questions facing researchers who study the Martian surface.
SpaceX turned down government money to build Falcon Heavy
Capitalism in space: In a presentation yesterday in Europe, one of SpaceX’s executives, Hans Koenigsmann, made it clear that SpaceX paid entirely for the development of Falcon Heavy, and in fact turned down an offer of government funding.
According to the SpaceX executive, the company was actually approached by “the government”, with the unknown agency or agencies stating – in Hans’ words – that they wanted to be a part of the rocket’s development. According to Hans, SpaceX responded in an extremely unorthodox fashion: “we said, ‘Nope! We just wanna build it, you can buy it when it’s ready and we’ll charge you for the service.’” He noted in the next sentence that funding was the primary lever on the table: “It’s a great position to do this, you gotta find the money, you gotta know people that have money and are willing to invest in your company, and [SpaceX has] been lucky enough to know some of those people.”
In other words, when given an opportunity to either rely on government funding or some other source of capital for a given R&D project, SpaceX – or at least Hans Koenigsmann, VP of Reliability – would apparently recommend the latter option in almost all cases. Again, without being prompted, he elaborated on his feelings about funding sources, culminating in a statement that is simply profound coming from an executive in the aerospace industry. The following quote is unabridged and straight from Hans himself:
“You need to [try to not] get money from the government, otherwise the government will tell you what to build and how to build it… they will tell you how to build this and that’s just not always – I mean for some things it’s the best to do, but in others it’s actually not.”
In other words, don’t let the government run your business. Use the government as an eventual customer, but build your product in a way that will not make them your only customer.
You can watch his entire presentation in the embedded video below the fold. Koenigsmann also noted that this Sunday’s first attempt to land a first stage at Vandenberg will likely produce a spectacular show for anyone who watches.
» Read more
Capitalism in space: In a presentation yesterday in Europe, one of SpaceX’s executives, Hans Koenigsmann, made it clear that SpaceX paid entirely for the development of Falcon Heavy, and in fact turned down an offer of government funding.
According to the SpaceX executive, the company was actually approached by “the government”, with the unknown agency or agencies stating – in Hans’ words – that they wanted to be a part of the rocket’s development. According to Hans, SpaceX responded in an extremely unorthodox fashion: “we said, ‘Nope! We just wanna build it, you can buy it when it’s ready and we’ll charge you for the service.’” He noted in the next sentence that funding was the primary lever on the table: “It’s a great position to do this, you gotta find the money, you gotta know people that have money and are willing to invest in your company, and [SpaceX has] been lucky enough to know some of those people.”
In other words, when given an opportunity to either rely on government funding or some other source of capital for a given R&D project, SpaceX – or at least Hans Koenigsmann, VP of Reliability – would apparently recommend the latter option in almost all cases. Again, without being prompted, he elaborated on his feelings about funding sources, culminating in a statement that is simply profound coming from an executive in the aerospace industry. The following quote is unabridged and straight from Hans himself:
“You need to [try to not] get money from the government, otherwise the government will tell you what to build and how to build it… they will tell you how to build this and that’s just not always – I mean for some things it’s the best to do, but in others it’s actually not.”
In other words, don’t let the government run your business. Use the government as an eventual customer, but build your product in a way that will not make them your only customer.
You can watch his entire presentation in the embedded video below the fold. Koenigsmann also noted that this Sunday’s first attempt to land a first stage at Vandenberg will likely produce a spectacular show for anyone who watches.
» Read more
How one region’s space industry represents the world
On October 2 I attended for the first time a monthly meeting of the Arizona Space Business Roundtable, an informal gathering put together by Stephen Fleming of the University of Arizona’s Strategic Business Initiatives and designed to allow the various space businesses of southern Arizona to network together as well as highlight what they are accomplishing to themselves and to others.
This particular meeting involved the presentation to the business community of a study that looked into the potential growth possibilities for space within the Tucson region. The study had been financed by the University of Arizona, several local venture capital companies, and the local county government, and had found that southern Arizona’s most likely source of space business in the near future would revolve around the need to track and monitor the large number of satellites expected to be launched in the coming decades. This would also involve substantial military work, as well as related space junk clean-up duties. The study also found that the southern Arizona space industry is well suited to provide much of the growing support services that future space missions, both governmental and private, will need. You can read more about the study’s results and the meeting at this Arizona Star article.
What struck me most about this gathering and the space industry of southern Arizona, however, is how much it resembles the regional space industries in numerous other places throughout the United States and the world. In fact, during a panel discussion after the presentation Fleming specifically asked the panelists — made up of several local companies (Vector, Worldview, Paragon) and two venture capital companies — what other regions in the U.S. posed the most competitive threat to southern Arizona. The panelists quickly listed Denver-Boulder, Silicon Valley in California, Huntsville in Alabama, the Space Coast in Florida, and New Mexico. They also made it clear that this list was not complete.
All of these regions are presently prospering and, more important, growing. All see a bright future in space, and all are aggressively competing to grab as large a market share in this future as they can. Even more significant, there appears to be more than enough business to go around. With numerous new countries pushing their own space efforts (China, India, UAE, Great Britain, Luxembourg, to name only a few), and both the American government as well as private companies attempting their own missions to the Moon and beyond, the possibilities appear endless. A lot of government money and investment capital is presently being poured into space, and numerous regions throughout the world are reaching for that money and the future profits it will bring.
And all of these regions are stock full of numerous independent and private companies and individuals, all pushing their own ideas about how space should be explored and conquered.
There are many aspects of the present charge to explore and settle the solar system that I do not like and believe will actually hamper and slow that exploration and settlement. Nonetheless, this charge is happening worldwide, and with amazing and increasing vigor. Even the worst proposals, such as NASA’s Gateway project, are going to eventually lead to new space technologies and capabilities that will sooner or later make it possible for the human race to routinely travel throughout the solar system.
It appears that the next two decades will lay the groundwork for the next few centuries of space exploration. And much of that groundwork will take place out of sight of the general public, with small companies located in regions like these. As with all great endeavors, the structure is that of a pyramid. At the top is the leader (such as SpaceX) that everyone watches and admires. Below it however is a vast subculture that provides the foundation for that leadership, even as it pushes upward to compete against it.
These are exciting times. I suggest if you love space you climb on the rocket now, before it picks up so much speed it will be beyond your reach.
NASA study says deep space will cause cancer and destroy stomachs
We’re all gonna die! A NASA study on rats using simulated space radiation suggests that long duration space missions beyond Earth orbit will cause cancer as well as significant harm to human intestines.
The study, published by cancer researchers at Georgetown University Medical Center, used mice to test exposure to heavy ion radiation, which mimics the galactic cosmic radiation found in deep space. If that sounds complicated, essentially researchers compared “space” radiation to X-ray radiation and found its effects to be much more dangerous.
After long exposures to a low dose of galactic radiation, mice had permanent damage to their gastrointestinal tracts and could no longer absorb nutrients in food. The mice also developed cancerous growths in their intestines — raising concerns that astronauts who venture far into space would face the same deadly health issues. “While short trips, like the times astronauts traveled to the moon, may not expose them to this level of damage, the real concern is lasting injury from a long trip,” said Kamal Datta, head of Georgetown’s NASA Specialized Center of Research, in a press release.
More here.
Must I point out the uncertainties and weaknesses of this study? They did the test on rats. They simulated the radiation. And it appears they simulated the radiation dosages assuming the spacecraft would have little or no shielding, an absurd approach.
Space is dangerous, but there is no reason to exaggerate the dangers wildly, unless you wish to generate fake reasons for additional funding, as NASA is prone to do.
We’re all gonna die! A NASA study on rats using simulated space radiation suggests that long duration space missions beyond Earth orbit will cause cancer as well as significant harm to human intestines.
The study, published by cancer researchers at Georgetown University Medical Center, used mice to test exposure to heavy ion radiation, which mimics the galactic cosmic radiation found in deep space. If that sounds complicated, essentially researchers compared “space” radiation to X-ray radiation and found its effects to be much more dangerous.
After long exposures to a low dose of galactic radiation, mice had permanent damage to their gastrointestinal tracts and could no longer absorb nutrients in food. The mice also developed cancerous growths in their intestines — raising concerns that astronauts who venture far into space would face the same deadly health issues. “While short trips, like the times astronauts traveled to the moon, may not expose them to this level of damage, the real concern is lasting injury from a long trip,” said Kamal Datta, head of Georgetown’s NASA Specialized Center of Research, in a press release.
More here.
Must I point out the uncertainties and weaknesses of this study? They did the test on rats. They simulated the radiation. And it appears they simulated the radiation dosages assuming the spacecraft would have little or no shielding, an absurd approach.
Space is dangerous, but there is no reason to exaggerate the dangers wildly, unless you wish to generate fake reasons for additional funding, as NASA is prone to do.
October 2, 2018 Zimmerman/Batchelor podcast
Curiosity to switch computers in effort to restore operations
The Curiosity engineering team have decided to switch on-board computers in effort to figure out why the rover has been unable to store and send any data since September 15.
After reviewing several options, JPL engineers recommended that the rover switch from Side B to Side A, the computer the rover used initially after landing.
The rover continues to send limited engineering data stored in short-term memory when it connects to a relay orbiter. It is otherwise healthy and receiving commands. But whatever is preventing Curiosity from storing science data in long-term memory is also preventing the storage of the rover’s event records, a journal of all its actions that engineers need in order to make a diagnosis. The computer swap will allow data and event records to be stored on the Side-A computer.
Side A experienced hardware and software issues over five years ago on sol 200 of the mission, leaving the rover uncommandable and running down its battery. At that time, the team successfully switched to Side B. Engineers have since diagnosed and quarantined the part of Side A’s memory that was affected so that computer is again available to support the mission. [emphasis mine]
As indicated by the highlighted paragraph, the switch does carry some risk. Though they say they have isolated the problems with the A computer, they might be surprised when they turn it on.
Meanwhile, silence continues from Opportunity. After fourteen years of almost continuous rover operations on Mars, the United States have been roverless now for more than two weeks.
The Curiosity engineering team have decided to switch on-board computers in effort to figure out why the rover has been unable to store and send any data since September 15.
After reviewing several options, JPL engineers recommended that the rover switch from Side B to Side A, the computer the rover used initially after landing.
The rover continues to send limited engineering data stored in short-term memory when it connects to a relay orbiter. It is otherwise healthy and receiving commands. But whatever is preventing Curiosity from storing science data in long-term memory is also preventing the storage of the rover’s event records, a journal of all its actions that engineers need in order to make a diagnosis. The computer swap will allow data and event records to be stored on the Side-A computer.
Side A experienced hardware and software issues over five years ago on sol 200 of the mission, leaving the rover uncommandable and running down its battery. At that time, the team successfully switched to Side B. Engineers have since diagnosed and quarantined the part of Side A’s memory that was affected so that computer is again available to support the mission. [emphasis mine]
As indicated by the highlighted paragraph, the switch does carry some risk. Though they say they have isolated the problems with the A computer, they might be surprised when they turn it on.
Meanwhile, silence continues from Opportunity. After fourteen years of almost continuous rover operations on Mars, the United States have been roverless now for more than two weeks.
BBC’s Proms Hedwig’s Theme
The first exomoon found?
Worlds without end: Scientists using data from the Hubble Space Telescope and Kepler have detected evidence that suggests the discovery of the first moon outside our solar system.
The data indicate an exomoon the size of Neptune, in a stellar system 8000 light-years from Earth. The new results are presented in the journal Science Advances.
…In 2017 NASA’s Kepler Space Telescope detected hints of an exomoon orbiting the planet Kepler-1625b. Now, two scientists from Columbia University in New York (USA) have used the incomparable capabilities of the NASA/ESA Hubble Space Telescope to study the star Kepler-1625, 8000 light-years away, and its planet in more detail. The new observations made with Hubble show compelling evidence for a large exomoon orbiting the only known planet of Kepler-1625. If confirmed, this would be the first discovery of a moon outside our Solar System.
The candidate moon, with the designation Kepler-1625b-i, is unusual because of its large size; it is comparable in diameter to the planet Neptune. Such gargantuan moons are unknown in our own Solar System. “This may yield new insights into the development of planetary systems and may cause astronomers to revisit theories of how moons form,” Alex Teachey, a graduate student who led the study, explained excitedly.
Like its moon, Kepler-1625b is also bigger than its counterparts in the Solar System. The exoplanet is a gas giant, several times more massive than Jupiter. It orbits its parent star at a distance similar to the distance between the Sun and Earth, which puts it — and its candidate moon — at the inner edge of the habitable zone of the star system.
The alien nature of this solar system should not surprise us. If anything, it is only a hint at the wild and exotic solar systems we have yet to discover.
Worlds without end: Scientists using data from the Hubble Space Telescope and Kepler have detected evidence that suggests the discovery of the first moon outside our solar system.
The data indicate an exomoon the size of Neptune, in a stellar system 8000 light-years from Earth. The new results are presented in the journal Science Advances.
…In 2017 NASA’s Kepler Space Telescope detected hints of an exomoon orbiting the planet Kepler-1625b. Now, two scientists from Columbia University in New York (USA) have used the incomparable capabilities of the NASA/ESA Hubble Space Telescope to study the star Kepler-1625, 8000 light-years away, and its planet in more detail. The new observations made with Hubble show compelling evidence for a large exomoon orbiting the only known planet of Kepler-1625. If confirmed, this would be the first discovery of a moon outside our Solar System.
The candidate moon, with the designation Kepler-1625b-i, is unusual because of its large size; it is comparable in diameter to the planet Neptune. Such gargantuan moons are unknown in our own Solar System. “This may yield new insights into the development of planetary systems and may cause astronomers to revisit theories of how moons form,” Alex Teachey, a graduate student who led the study, explained excitedly.
Like its moon, Kepler-1625b is also bigger than its counterparts in the Solar System. The exoplanet is a gas giant, several times more massive than Jupiter. It orbits its parent star at a distance similar to the distance between the Sun and Earth, which puts it — and its candidate moon — at the inner edge of the habitable zone of the star system.
The alien nature of this solar system should not surprise us. If anything, it is only a hint at the wild and exotic solar systems we have yet to discover.
NASA signs agreement to work with SpaceIL’s privately built lunar rover
Capitalism in space: NASA, the Israeli space agency, and the private Israeli space company SpaceIL have signed a cooperative agreement to work together when SpaceIL’s privately built lunar rover is launched to the Moon in December.
NASA will contribute a laser retroreflector array to aid with ground tracking and Deep Space Network support to aid in mission communication. ISA and SpaceIL will share data with NASA from the SpaceIL lunar magnetometer installed aboard the spacecraft. The instrument, which was developed in collaboration with the Weizmann Institute of Science, will measure the magnetic field on and above the landing site. The data will be made publicly available through NASA’s Planetary Data System. In addition, NASA’s Lunar Reconnaissance Orbiter will attempt to take scientific measurements of the SpaceIL lander as it lands on the Moon.
This agreement is the first step in the transition from having the government build planetary probes to it becoming a customer, buying these probes from private companies that build them for profit.
Capitalism in space: NASA, the Israeli space agency, and the private Israeli space company SpaceIL have signed a cooperative agreement to work together when SpaceIL’s privately built lunar rover is launched to the Moon in December.
NASA will contribute a laser retroreflector array to aid with ground tracking and Deep Space Network support to aid in mission communication. ISA and SpaceIL will share data with NASA from the SpaceIL lunar magnetometer installed aboard the spacecraft. The instrument, which was developed in collaboration with the Weizmann Institute of Science, will measure the magnetic field on and above the landing site. The data will be made publicly available through NASA’s Planetary Data System. In addition, NASA’s Lunar Reconnaissance Orbiter will attempt to take scientific measurements of the SpaceIL lander as it lands on the Moon.
This agreement is the first step in the transition from having the government build planetary probes to it becoming a customer, buying these probes from private companies that build them for profit.
More fake papers accepted by sociology/gender/racism journals
In what has become almost a regular event, several honest academics (who call by the way identify themselves as “leftwing”) have once again successfully gotten published seven bogus papers in journals centered on gender, feminist, race, and ethnic studies.
Once they had a grasp on what was already being published, they quickly wrote 20 bogus papers. Seven of those were accepted for publication by various journals and several others were pending rewrites and probably would have been accepted if the authors hadn’t been forced to call off the experiment early. For comparison purposes, seven papers is the average number you would need to publish over seven years in order to secure tenure at most universities. The authors estimate at least 10 of the 20 would have been accepted given more time. And they could have kept churning these out and had one or two new papers accepted for publication every month, for as long as they wanted to continue.
They key point here is that the papers themselves were written not as an attempt to expand knowledge but as pure sophistry. Each one started with an absurd premise and then used the contours of social justice thought, what the authors call “grievance studies,” to make the premise seem plausible.
It is worth reading their full report. To show how corrupt these fields have become, one of those accepted papers simply took a chapter of Hitler’s Mein Kampf and reshaped it slightly using feminist jargon. As the project’s authors found. the point of these publications has nothing to do with knowledge,
This is the primary point of the project: What we just described is not knowledge production; it’s sophistry. That is, it’s a forgery of knowledge that should not be mistaken for the real thing. The biggest difference between us and the scholarship we are studying by emulation is that we know we made things up. [emphasis in original]
Below the fold is a short video the three scholars produced to explain their work, what it accomplished, and their own conclusions, which strongly condemn the entire field of ethnic, race, and gender studies.
The real problem however is not what these scholars learned and demonstrated. That these fields are corrupt and infused with leftist political ideology that makes all worthwhile research impossible has been proven for decades. In 1996 physicist Alan Sokol did exactly the same thing, getting a top sociology journal to publish a fake paper purposely filled with the obtuse leftist jargon that these journals prize.
The real problem is that nothing changes. These journals continue to publish this crap and the departments and fake professors who produce it continue to be funded. In fact, since Sokal’s hoax in 1996 their funding and power has grown, not shrunk, despite repeated similar stories in the past two decades demonstrating their willingness to publish fake papers, as long as those papers advocate political leftist garbage that works to destroy the search for truth that is the hallmark of western civilization.
The journals that accepted the seven papers above should all be shut down, today. The schools that fund the departments that publish in those journals should be closed, today. The professors who teach in those departments should be fired, today. None of them contribute anything worthwhile to our society or to academic scholarship, and in fact they are fueling the racial hatred and intolerance that is now pervading American intellectual society.
Unfortunately, I have no faith that any of that will happen. Instead, I expect their corrupt bigoted leftist effort to continue to grow, permeating more aspects of modern intellectual life, with the resulting hate they engender causing a growth in violence and oppression.
» Read more
In what has become almost a regular event, several honest academics (who call by the way identify themselves as “leftwing”) have once again successfully gotten published seven bogus papers in journals centered on gender, feminist, race, and ethnic studies.
Once they had a grasp on what was already being published, they quickly wrote 20 bogus papers. Seven of those were accepted for publication by various journals and several others were pending rewrites and probably would have been accepted if the authors hadn’t been forced to call off the experiment early. For comparison purposes, seven papers is the average number you would need to publish over seven years in order to secure tenure at most universities. The authors estimate at least 10 of the 20 would have been accepted given more time. And they could have kept churning these out and had one or two new papers accepted for publication every month, for as long as they wanted to continue.
They key point here is that the papers themselves were written not as an attempt to expand knowledge but as pure sophistry. Each one started with an absurd premise and then used the contours of social justice thought, what the authors call “grievance studies,” to make the premise seem plausible.
It is worth reading their full report. To show how corrupt these fields have become, one of those accepted papers simply took a chapter of Hitler’s Mein Kampf and reshaped it slightly using feminist jargon. As the project’s authors found. the point of these publications has nothing to do with knowledge,
This is the primary point of the project: What we just described is not knowledge production; it’s sophistry. That is, it’s a forgery of knowledge that should not be mistaken for the real thing. The biggest difference between us and the scholarship we are studying by emulation is that we know we made things up. [emphasis in original]
Below the fold is a short video the three scholars produced to explain their work, what it accomplished, and their own conclusions, which strongly condemn the entire field of ethnic, race, and gender studies.
The real problem however is not what these scholars learned and demonstrated. That these fields are corrupt and infused with leftist political ideology that makes all worthwhile research impossible has been proven for decades. In 1996 physicist Alan Sokol did exactly the same thing, getting a top sociology journal to publish a fake paper purposely filled with the obtuse leftist jargon that these journals prize.
The real problem is that nothing changes. These journals continue to publish this crap and the departments and fake professors who produce it continue to be funded. In fact, since Sokal’s hoax in 1996 their funding and power has grown, not shrunk, despite repeated similar stories in the past two decades demonstrating their willingness to publish fake papers, as long as those papers advocate political leftist garbage that works to destroy the search for truth that is the hallmark of western civilization.
The journals that accepted the seven papers above should all be shut down, today. The schools that fund the departments that publish in those journals should be closed, today. The professors who teach in those departments should be fired, today. None of them contribute anything worthwhile to our society or to academic scholarship, and in fact they are fueling the racial hatred and intolerance that is now pervading American intellectual society.
Unfortunately, I have no faith that any of that will happen. Instead, I expect their corrupt bigoted leftist effort to continue to grow, permeating more aspects of modern intellectual life, with the resulting hate they engender causing a growth in violence and oppression.
» Read more