Month: August 2020
Air Force limits future launch bidding to SpaceX and ULA
The Air Force today announced that it decided, after more than a year of discussions and negotiations, to limit bidding on all launch contracts for the next five years to only SpaceX and ULA, thus restricting competitive bidding on those contracts.
The awards represent the second phase of the military’s National Security Space Launch program, which is organized by the Air Force’s Space and Missile Systems Center in Los Angeles, California. Four companies — Elon Musk’s SpaceX, ULA, Northrop Grumman and Jeff Bezos’ Blue Origin — bid for the contracts, with the military set to spend about $1 billion per year on launches.
The NSSL awards represent nearly three dozen launches, scheduled between 2022 and 2026. ULA won 60% of the launches, and SpaceX won the remaining 40%.
The award blocks Northrop Grumman and Blue Origin from bidding on these contracts. Expect a lawsuit from these two companies demanding that they have the right to bid, just as SpaceX did several years ago when the Air Force tried to maintain ULA’s monopoly on bidding.
On a very common sense level, this approach by the Air Force (its space operations soon to be taken over by the Space Force) makes little sense. Why restrict bidding? Both Blue Origin or Northrop Grumman expect to have their new rockets operating commercially in the next two years. They should have the right to bid on military launches. The competition will strengthen the launch market, reduce the costs to the military, and give it more redundancy and flexibility.
Based on my research, the only real reason I have ever been able to find for the Air Force’s desire to do this is their inability to deal with their paperwork should more than two bids be received.
The Air Force today announced that it decided, after more than a year of discussions and negotiations, to limit bidding on all launch contracts for the next five years to only SpaceX and ULA, thus restricting competitive bidding on those contracts.
The awards represent the second phase of the military’s National Security Space Launch program, which is organized by the Air Force’s Space and Missile Systems Center in Los Angeles, California. Four companies — Elon Musk’s SpaceX, ULA, Northrop Grumman and Jeff Bezos’ Blue Origin — bid for the contracts, with the military set to spend about $1 billion per year on launches.
The NSSL awards represent nearly three dozen launches, scheduled between 2022 and 2026. ULA won 60% of the launches, and SpaceX won the remaining 40%.
The award blocks Northrop Grumman and Blue Origin from bidding on these contracts. Expect a lawsuit from these two companies demanding that they have the right to bid, just as SpaceX did several years ago when the Air Force tried to maintain ULA’s monopoly on bidding.
On a very common sense level, this approach by the Air Force (its space operations soon to be taken over by the Space Force) makes little sense. Why restrict bidding? Both Blue Origin or Northrop Grumman expect to have their new rockets operating commercially in the next two years. They should have the right to bid on military launches. The competition will strengthen the launch market, reduce the costs to the military, and give it more redundancy and flexibility.
Based on my research, the only real reason I have ever been able to find for the Air Force’s desire to do this is their inability to deal with their paperwork should more than two bids be received.
Ascraeus Mons, Mars’ second highest mountain
Today’s cool Mars’ image started out when I came across an interesting image of a depression on the northern flank of the giant Martian volcano Ascraeus Mons, the northernmost of the line of three giant volcanoes just to the east of the biggest of all, Olympus Mons.
To provide context I created an overview showing the entire volcano (with the white rectangle showing the location of the depression image), and suddenly realized that this overview might actually be more interesting to my readers. To the right is that overview of Ascreaus, with a scale across the bottom to indicate the elevation of the mountain above what scientists have determined to be Mars’ pseudo sea level.
Notice that this volcano, the second highest on Mars, rises more than 43,000 feet above the surrounding plains. Its peak is estimated to be about 59,000 feet high, making it taller than Mt. Everest by about 30,000 feet (more than twice its height). Its diameter is approximately 300 miles across, giving it a much steeper profile than the higher but more spread out Olympus Mons. The map below shows this mountain in relation to Olympus as well as its nearby partner volcanoes.
» Read more
Today’s cool Mars’ image started out when I came across an interesting image of a depression on the northern flank of the giant Martian volcano Ascraeus Mons, the northernmost of the line of three giant volcanoes just to the east of the biggest of all, Olympus Mons.
To provide context I created an overview showing the entire volcano (with the white rectangle showing the location of the depression image), and suddenly realized that this overview might actually be more interesting to my readers. To the right is that overview of Ascreaus, with a scale across the bottom to indicate the elevation of the mountain above what scientists have determined to be Mars’ pseudo sea level.
Notice that this volcano, the second highest on Mars, rises more than 43,000 feet above the surrounding plains. Its peak is estimated to be about 59,000 feet high, making it taller than Mt. Everest by about 30,000 feet (more than twice its height). Its diameter is approximately 300 miles across, giving it a much steeper profile than the higher but more spread out Olympus Mons. The map below shows this mountain in relation to Olympus as well as its nearby partner volcanoes.
» Read more
The hateful violent Antifa/Black Lives Matter rioters
The new civility: Watch the numerous videos at this link of masked Antifa/Black Lives Matter rioters in Portland as they attack and abuse an old woman using a walker, who simply wants to protect a police precinct building from being vandalized and burnt to the ground.
Remember these facts about what you watch:
1. Democrat Jerry Nadler (D-New York) claims these hateful rioters are “a myth.” Nadler is also typical of most Democratic politicians, who have for the past four years, since Trump was elected, treated these Antifa rioters (now joined by the Marxist, white-hating BLM crowd) as the SS wing of the Democratic Party. While they will sometimes disavow their violence, they do nothing to stop it, since it instills fear and submission among their opponents.
2. Watch and listen. These rioters epitomize hate in every way, in their dress, in their behavior, in their irrational violence, in their bigotry (assuming all who disagree with them are evil). And we are somehow supposed to let them do as they wish, because of the First Amendment?
3. Speaking of the First Amendment, since when did free speech morph into allowing a mob to rampantly loot, burn, and destroy whatever they want? Since when did it include the right to attack cars and even threaten to kill people?
4. Note how our politicians, mostly Democrats but helped by numerous weasel Republicans, have now normalized the wearing of masks, based not on any science but on irrational fear. We have now all been forced to adopt the garb of these hateful thugs. It is as if some mustached national leader required us all to wear armbands carrying the symbol of his political movement, with the threat of arrest if we dare to dissent.
Other than these minor details, everything these Portland “protesters” are doing is wonderful and perfect and must be defended blindly, forever. And don’t dare say otherwise, or you will be doxed and they will come to your home to accost your family and your children.
Hayabusa-2’s future asteroid targets
Link here. There are two prime candidate asteroid targets, both near Earth astroids.
The possible secondary targets include the oblong asteroid 2001 AV43 or the asteroid 1998 KY 26. They’re each about the size of a large house and both orbit the Sun in roughly 500 days. The proposed plan would see Hayabusa 2 arriving at 2001 AV43 in the late 2029 time frame, or reaching 1998 KY 26 in July 2031. Both asteroids have a low enough relative speed relative to the spacecraft to put them within (eventual) reach after Hayabusa 2’s December flyby.
Interestingly, 2001 AV43 will fly 313,000 km from Earth (0.8 times the Earth-Moon distance) on November 11, 2029.
The two asteroids were selected from an initial field of 354 candidates, which was winnowed down based on accessibility and scientific interest. Both are fast rotators, as evidenced by their light curves, each spinning on its respective axis once every 10 minutes. This represents the shortest “day” of any known object in the solar system, suggesting that these asteroids are in fact solid objects and not simply loosely aggregated “rubble piles.” A visit to one of these asteroids would mark the first time a space mission has seen such an enigmatic fast rotator up close.
The asteroid 1998 KY26 is also a possible carbonaceous (C-type) asteroid, and Hayabusa 2’s exploration of such a space rock would be another first.
Going to 1998 KY26 would also require a distant pass of another asteroid. Going to 2001 AV43 would require a fly-by of Venus, which could provide more data on that planet. Based on this information, my guess is that they will opt for 1998 KY26.
The decision must likely be made before Hayabusa-2 drops off its Ryugu samples to Earth on December 6, 2020.
Link here. There are two prime candidate asteroid targets, both near Earth astroids.
The possible secondary targets include the oblong asteroid 2001 AV43 or the asteroid 1998 KY 26. They’re each about the size of a large house and both orbit the Sun in roughly 500 days. The proposed plan would see Hayabusa 2 arriving at 2001 AV43 in the late 2029 time frame, or reaching 1998 KY 26 in July 2031. Both asteroids have a low enough relative speed relative to the spacecraft to put them within (eventual) reach after Hayabusa 2’s December flyby.
Interestingly, 2001 AV43 will fly 313,000 km from Earth (0.8 times the Earth-Moon distance) on November 11, 2029.
The two asteroids were selected from an initial field of 354 candidates, which was winnowed down based on accessibility and scientific interest. Both are fast rotators, as evidenced by their light curves, each spinning on its respective axis once every 10 minutes. This represents the shortest “day” of any known object in the solar system, suggesting that these asteroids are in fact solid objects and not simply loosely aggregated “rubble piles.” A visit to one of these asteroids would mark the first time a space mission has seen such an enigmatic fast rotator up close.
The asteroid 1998 KY26 is also a possible carbonaceous (C-type) asteroid, and Hayabusa 2’s exploration of such a space rock would be another first.
Going to 1998 KY26 would also require a distant pass of another asteroid. Going to 2001 AV43 would require a fly-by of Venus, which could provide more data on that planet. Based on this information, my guess is that they will opt for 1998 KY26.
The decision must likely be made before Hayabusa-2 drops off its Ryugu samples to Earth on December 6, 2020.
Russia to ship Nauka to Baikonur launch site August 10
Russia now plans to ship its Nauka ISS module to Baikonur on August 10th, three days later than previously planned, where it will begin the final nine months of preparations for launch.
“The stage of electrical tests takes about six months together with preparations because there is a large number of systems. Scheduled operational measures take another three months from this moment to the launch. This involves direct preparations for the launch together with the provision of microbiological protection, fueling and other operations,” he explained.
Nauka will provide the Russians a second toilet on ISS, plus produce oxygen and water (from urine) for six astronauts. It will also become the cabin for a third Russian-flown astronaut, either tourist or professional.
Nauka is a quarter century in the making, its construction having started in 1995. As a government-run project, that pace matches well with SLS, Orion, the James Webb Space Telescope, and many other big government projects not related to space. The goal isn’t to accomplish anything really but to create the justification for fake jobs that can last a lifetime.
Russia now plans to ship its Nauka ISS module to Baikonur on August 10th, three days later than previously planned, where it will begin the final nine months of preparations for launch.
“The stage of electrical tests takes about six months together with preparations because there is a large number of systems. Scheduled operational measures take another three months from this moment to the launch. This involves direct preparations for the launch together with the provision of microbiological protection, fueling and other operations,” he explained.
Nauka will provide the Russians a second toilet on ISS, plus produce oxygen and water (from urine) for six astronauts. It will also become the cabin for a third Russian-flown astronaut, either tourist or professional.
Nauka is a quarter century in the making, its construction having started in 1995. As a government-run project, that pace matches well with SLS, Orion, the James Webb Space Telescope, and many other big government projects not related to space. The goal isn’t to accomplish anything really but to create the justification for fake jobs that can last a lifetime.
OSIRIS-REx preps for final rehearsal of sample grab
The OSIRIS-REx science and engineering team is getting ready for its August 11th final rehearsal of the sample grab-and-go at the asteroid Bennu that it plans to do in October.
If the rehearsal goes right, the spacecraft will descend to within 131 feet of the surface of Bennu as it deploys its equipment as if it would continue down to the surface. It will also fly in formation above the Nightingale sample site when it does this, taking the highest resolution images yet of the surface of the asteroid.
It will then back off, returning to its home orbit farther from Bennu. Engineers will then review what happened, and use that data to prepare for the actual sample grab-and-go, set for October 20, 2020.
The OSIRIS-REx science and engineering team is getting ready for its August 11th final rehearsal of the sample grab-and-go at the asteroid Bennu that it plans to do in October.
If the rehearsal goes right, the spacecraft will descend to within 131 feet of the surface of Bennu as it deploys its equipment as if it would continue down to the surface. It will also fly in formation above the Nightingale sample site when it does this, taking the highest resolution images yet of the surface of the asteroid.
It will then back off, returning to its home orbit farther from Bennu. Engineers will then review what happened, and use that data to prepare for the actual sample grab-and-go, set for October 20, 2020.
SpaceX launches more Starlink satellites
Capitalism in space: SpaceX tonight successfully put two commercial satellites for another customer plus another 57 of its own Starlink satellites into orbit, using a Falcon 9 rocket that was reusing a first stage flying for the fifth time.
This brings the total number of Starlink satellites now in orbit to 595. They also successfully landed the first stage, making it now available for a sixth flight.
19 China
12 SpaceX
9 Russia
4 ULA
The U.S. has retaken the lead from China in the national rankings, 20 to 19.
Capitalism in space: SpaceX tonight successfully put two commercial satellites for another customer plus another 57 of its own Starlink satellites into orbit, using a Falcon 9 rocket that was reusing a first stage flying for the fifth time.
This brings the total number of Starlink satellites now in orbit to 595. They also successfully landed the first stage, making it now available for a sixth flight.
19 China
12 SpaceX
9 Russia
4 ULA
The U.S. has retaken the lead from China in the national rankings, 20 to 19.
What do you do when all four engines on a 747 fail in flight?
An evening pause: It actually happened, and it also amazingly has a happy ending.
Hat tip Mike Nelson.
Slushy floor of southern Martian crater?
Click for full image.
The cool image to the right, rotated, cropped, and reduced to post here, shows the northwest section of the floor of a crater in the southern cratered highlands of Mars, in a mountainous region dubbed Claritus Fossae, located south of Valles Marineris. The photo was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on May 14, 2020.
The entire crater floor appears to be covered by these strings of closely-packed knobs, reminiscent of the brain terrain found in the mid-latitude glacial regions of Mars and thought to be the result of underground ice sublimating upward.
Below is the area in the white box, in full resolution.
» Read more
Click for full image.
The cool image to the right, rotated, cropped, and reduced to post here, shows the northwest section of the floor of a crater in the southern cratered highlands of Mars, in a mountainous region dubbed Claritus Fossae, located south of Valles Marineris. The photo was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on May 14, 2020.
The entire crater floor appears to be covered by these strings of closely-packed knobs, reminiscent of the brain terrain found in the mid-latitude glacial regions of Mars and thought to be the result of underground ice sublimating upward.
Below is the area in the white box, in full resolution.
» Read more
California & Space Force to encourage private launches at Vandenberg
Capitalism in space: The state government of California has signed an agreement with the U.S. Space Force to expand private launches facilities at Vandenberg Space Force Base
It appears that the Space Force is aggressively trying to encourage new private launch operations to take flight out of Vandenberg. The article however is very unclear about exactly what this new agreement accomplishes. I could not find its actual text, and from the story all we get is typical government blather:
[Chris Dombrowski, acting director of the Governor’s Office of Business and Economic Development] said the organizations under the [agreement] will develop a “master plan that identifies the required infrastructure, human capital development, governance and financing necessary to support the United States Space Force mission and position California as a leader in the future of the commercial space industry.”
“This MOU serves as a critical investment in California’s innovative economy as we work to safely recover from the COVID-19 induced recession,” he said.
If anything, it appears that California’s Democratic and very power-hungry government is using this agreement to take control of any new private operations, so that it can dictate how they operate, according to its whims. If so, don’t expect much private enterprise to prosper at Vandenberg.
Capitalism in space: The state government of California has signed an agreement with the U.S. Space Force to expand private launches facilities at Vandenberg Space Force Base
It appears that the Space Force is aggressively trying to encourage new private launch operations to take flight out of Vandenberg. The article however is very unclear about exactly what this new agreement accomplishes. I could not find its actual text, and from the story all we get is typical government blather:
[Chris Dombrowski, acting director of the Governor’s Office of Business and Economic Development] said the organizations under the [agreement] will develop a “master plan that identifies the required infrastructure, human capital development, governance and financing necessary to support the United States Space Force mission and position California as a leader in the future of the commercial space industry.”
“This MOU serves as a critical investment in California’s innovative economy as we work to safely recover from the COVID-19 induced recession,” he said.
If anything, it appears that California’s Democratic and very power-hungry government is using this agreement to take control of any new private operations, so that it can dictate how they operate, according to its whims. If so, don’t expect much private enterprise to prosper at Vandenberg.
Study: Lava tubes on Mars and the Moon will be gigantic
A new study comparing lava tubes on the Earth with those detected from orbit on Mars and the Moon now suggests that tubes on those other worlds will be many times larger than on Earth.
Researchers found that Martian and lunar tubes are respectively 100 and 1,000 times wider than those on Earth, which typically have a diameter of 10 to 30 meters. Lower gravity and its effect on volcanism explain these outstanding dimensions (with total volumes exceeding 1 billion of cubic meters on the Moon).
Riccardo Pozzobon adds: “Tubes as wide as these can be longer than 40 kilometres, making the Moon an extraordinary target for subsurface exploration and potential settlement in the wide protected and stable environments of lava tubes. The latter are so big they can contain Padua’s entire city centre”.
Moreover, the data suggests their roofs, even at this size, will be very stable because of the lower gravity, making them excellent locations for large human colonies.
The researchers also suggest that there are many intact such lava tubes under the mare regions on the Moon, their existence only hinted at by the rare skylights created due to asteroid impact.
A new study comparing lava tubes on the Earth with those detected from orbit on Mars and the Moon now suggests that tubes on those other worlds will be many times larger than on Earth.
Researchers found that Martian and lunar tubes are respectively 100 and 1,000 times wider than those on Earth, which typically have a diameter of 10 to 30 meters. Lower gravity and its effect on volcanism explain these outstanding dimensions (with total volumes exceeding 1 billion of cubic meters on the Moon).
Riccardo Pozzobon adds: “Tubes as wide as these can be longer than 40 kilometres, making the Moon an extraordinary target for subsurface exploration and potential settlement in the wide protected and stable environments of lava tubes. The latter are so big they can contain Padua’s entire city centre”.
Moreover, the data suggests their roofs, even at this size, will be very stable because of the lower gravity, making them excellent locations for large human colonies.
The researchers also suggest that there are many intact such lava tubes under the mare regions on the Moon, their existence only hinted at by the rare skylights created due to asteroid impact.
SpaceX and ULA get launch contracts from SES
Capitalism in space: The satellite communications company SES yesterday announced the award of new launch contracts to both SpaceX and ULA.
It appears that the contract was for one launch from each company, each putting up two satellites. Previously SES’s satellites were generally too large for either the Atlas 5 or the Falcon 9 to launch two at one time. This suggests that the satellite company is slimming down the design of its satellites.
Capitalism in space: The satellite communications company SES yesterday announced the award of new launch contracts to both SpaceX and ULA.
It appears that the contract was for one launch from each company, each putting up two satellites. Previously SES’s satellites were generally too large for either the Atlas 5 or the Falcon 9 to launch two at one time. This suggests that the satellite company is slimming down the design of its satellites.
Jeff Bezos sells $3 billion more in Amazon stock
Jeff Bezos this week sold another $3 billion in his Amazon stock, bringing the sales this year along to more than $7 billion.
Amazon stock has soared since mid-March as millions of customers rely on the e-commerce giant amid the pandemic for online shopping, cloud computing, and more. Last week the company posted $88.9 billion in revenue, up 40% from the year-ago quarter, with profits far ahead of Wall Street expectations at $5.2 billion.
Bezos said in 2017 that he was selling $1 billion a year to fund his Blue Origin space venture, but he has been increasing the size and frequency of the stock sales. He sold $2.8 billion worth of Amazon stock a year ago, and around $4 billion earlier this year.
Since 2017 Bezos has now raised more than $11 billion from sales of his Amazon stock. Initially he had said such sales were to finance his space company Blue Origin, but more recently he has indicated he wants to use the bulk of this cash to fight climate change, with portions also devoted services for the homeless and early childhood education.
In fact, it appears that Blue Origin is likely getting only a very small portion of this money, though at several billion this isn’t chicken-feed. At a minimum it likely matches what SpaceX has raised through private investment capital for its Starship/Starlink projects, and more likely exceeds it.
Yet, SpaceX continues to outpace Blue Origin, several times over. If anything, as the cash from Bezos has rolled in Blue Origin’s pace of test flights with New Shepard as well as the development of its BE-4 rocket engine and New Glenn orbital rocket seemed have slowed. Initially New Glenn was going to make its first orbital launch this year. Now they say it will launch next year but we hear little about any development progress. And the company only delivered a test engine of the BE-4 (not flight worthy) to ULA only about a month ago, far later than first promised.
Though the lack of news could simply be Blue Origin’s more secretive way of doing things, compared to SpaceX, I have my doubts. Rockets are big things, and building and testing them is not something easily kept under wraps, especially by private companies. The lack of news from Blue Origin continues to suggest that simply having lots of money does not necessarily guarantee success.
Jeff Bezos this week sold another $3 billion in his Amazon stock, bringing the sales this year along to more than $7 billion.
Amazon stock has soared since mid-March as millions of customers rely on the e-commerce giant amid the pandemic for online shopping, cloud computing, and more. Last week the company posted $88.9 billion in revenue, up 40% from the year-ago quarter, with profits far ahead of Wall Street expectations at $5.2 billion.
Bezos said in 2017 that he was selling $1 billion a year to fund his Blue Origin space venture, but he has been increasing the size and frequency of the stock sales. He sold $2.8 billion worth of Amazon stock a year ago, and around $4 billion earlier this year.
Since 2017 Bezos has now raised more than $11 billion from sales of his Amazon stock. Initially he had said such sales were to finance his space company Blue Origin, but more recently he has indicated he wants to use the bulk of this cash to fight climate change, with portions also devoted services for the homeless and early childhood education.
In fact, it appears that Blue Origin is likely getting only a very small portion of this money, though at several billion this isn’t chicken-feed. At a minimum it likely matches what SpaceX has raised through private investment capital for its Starship/Starlink projects, and more likely exceeds it.
Yet, SpaceX continues to outpace Blue Origin, several times over. If anything, as the cash from Bezos has rolled in Blue Origin’s pace of test flights with New Shepard as well as the development of its BE-4 rocket engine and New Glenn orbital rocket seemed have slowed. Initially New Glenn was going to make its first orbital launch this year. Now they say it will launch next year but we hear little about any development progress. And the company only delivered a test engine of the BE-4 (not flight worthy) to ULA only about a month ago, far later than first promised.
Though the lack of news could simply be Blue Origin’s more secretive way of doing things, compared to SpaceX, I have my doubts. Rockets are big things, and building and testing them is not something easily kept under wraps, especially by private companies. The lack of news from Blue Origin continues to suggest that simply having lots of money does not necessarily guarantee success.
Astronomers use Hubble to detect ozone on Earth
Using the Hubble Space Telescope, scientists have shown that it will be possible to detect ozone in the atmospheres of exoplanets, using larger telescopes while observing transits of those exoplanets across the face of their star.
What the scientists did was aim Hubble at the Moon during a lunar eclipse. Moreover, they timed the observations so that the sunlight hitting the Moon and reflecting back to Earth (and Hubble) had also traveled through the Earth’s atmosphere on its way to the Moon.
They then looked at the spectrum of that light, and were able to glean from it the spectral signal of ozone in the Earth’s atmosphere. When giant ground-based telescopes under construction now come on line in the coming decades they will have the ability to do this with transiting exoplanets.
The measurements detected the strong spectral fingerprint of ozone, a key prerequisite for the presence – and possible evolution – of life as we know it in an exo-Earth. Although some ozone signatures had been detected in previous ground-based observations during lunar eclipses, Hubble’s study represents the strongest detection of the molecule to date because it can look at the ultraviolet light, which is absorbed by our atmosphere and does not reach the ground. On Earth, photosynthesis over billions of years is responsible for our planet’s high oxygen levels and thick ozone layer. Only 600 million years ago Earth’s atmosphere had built up enough ozone to shield life from the Sun’s lethal ultraviolet radiation. That made it safe for the first land-based life to migrate out of our oceans.
“Finding ozone in the spectrum of an exo-Earth would be significant because it is a photochemical byproduct of molecular oxygen, which is a byproduct of life,” explained Allison Youngblood of the Laboratory for Atmospheric and Space Physics in Colorado, USA, lead researcher of Hubble’s observations.
Ozone does not guarantee the presence of life on an exoplanet, but combined with other detections, such as oxygen and methane, would raise the odds significantly.
Using the Hubble Space Telescope, scientists have shown that it will be possible to detect ozone in the atmospheres of exoplanets, using larger telescopes while observing transits of those exoplanets across the face of their star.
What the scientists did was aim Hubble at the Moon during a lunar eclipse. Moreover, they timed the observations so that the sunlight hitting the Moon and reflecting back to Earth (and Hubble) had also traveled through the Earth’s atmosphere on its way to the Moon.
They then looked at the spectrum of that light, and were able to glean from it the spectral signal of ozone in the Earth’s atmosphere. When giant ground-based telescopes under construction now come on line in the coming decades they will have the ability to do this with transiting exoplanets.
The measurements detected the strong spectral fingerprint of ozone, a key prerequisite for the presence – and possible evolution – of life as we know it in an exo-Earth. Although some ozone signatures had been detected in previous ground-based observations during lunar eclipses, Hubble’s study represents the strongest detection of the molecule to date because it can look at the ultraviolet light, which is absorbed by our atmosphere and does not reach the ground. On Earth, photosynthesis over billions of years is responsible for our planet’s high oxygen levels and thick ozone layer. Only 600 million years ago Earth’s atmosphere had built up enough ozone to shield life from the Sun’s lethal ultraviolet radiation. That made it safe for the first land-based life to migrate out of our oceans.
“Finding ozone in the spectrum of an exo-Earth would be significant because it is a photochemical byproduct of molecular oxygen, which is a byproduct of life,” explained Allison Youngblood of the Laboratory for Atmospheric and Space Physics in Colorado, USA, lead researcher of Hubble’s observations.
Ozone does not guarantee the presence of life on an exoplanet, but combined with other detections, such as oxygen and methane, would raise the odds significantly.
China launches Earth observation satellite
China today launched a new Earth observation satellite, using its Long March 2D rocket.
The leaders in the 2020 launch race:
19 China
11 SpaceX
9 Russia
4 ULA
The U.S. and China are now tied in the national rankings, 19-19.
China today launched a new Earth observation satellite, using its Long March 2D rocket.
The leaders in the 2020 launch race:
19 China
11 SpaceX
9 Russia
4 ULA
The U.S. and China are now tied in the national rankings, 19-19.
Filled and distorted craters on Mars
Click for full image.
Cool image time! The photo to the right, rotated and cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on May 25, 2020. The entire image was dubbed “Cluster of Filled Craters”, but I decided to highlight the crater of the cluster that was most strangely distorted of them all. The material that fills all the craters in the full image is almost certainly buried ice and is dubbed concentric crater fill by scientists.
This crater is located in the northern lowland plains the mid-latitudes between 30 and 60 degrees, where planetary scientists have found ample evidence of many such filled craters and glaciers.
Not only does the crater’s interior seemed filled with glacial material, its distorted rim suggests that it has been reshaped by glacial activity that might have covered it entirely over the eons as the mid-latitude glaciers of Mars waxed and waned with the extreme shifts that happen regularly to Mars’ rotational tilt. Moreover, there is strong evidence that in these lowland northern plains an underground ice table exists close to the surface, allowing for more distortion over time.
The overview map below provides some location context.
» Read more
Click for full image.
Cool image time! The photo to the right, rotated and cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on May 25, 2020. The entire image was dubbed “Cluster of Filled Craters”, but I decided to highlight the crater of the cluster that was most strangely distorted of them all. The material that fills all the craters in the full image is almost certainly buried ice and is dubbed concentric crater fill by scientists.
This crater is located in the northern lowland plains the mid-latitudes between 30 and 60 degrees, where planetary scientists have found ample evidence of many such filled craters and glaciers.
Not only does the crater’s interior seemed filled with glacial material, its distorted rim suggests that it has been reshaped by glacial activity that might have covered it entirely over the eons as the mid-latitude glaciers of Mars waxed and waned with the extreme shifts that happen regularly to Mars’ rotational tilt. Moreover, there is strong evidence that in these lowland northern plains an underground ice table exists close to the surface, allowing for more distortion over time.
The overview map below provides some location context.
» Read more
August 4, 2020 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
» Read more
Embedded below the fold in two parts.
» Read more
Gunhild Carling – Jazz on a bagpipe
Lightning and mushballs on Jupiter
Click for full illustration.
Using data from Juno, scientists now theorize that Jupiter produces what they dub “shallow lightning” as well as ammonia-water hailstones dubbed “mushballs.”
The image to the right, cropped and reduced to post here, is only an artist’s illustration of the lightning. Sadly Juno’s camera doesn’t have the resolution to capture such flashes.
An unexpected form of electrical discharge, shallow lightning originates from clouds containing an ammonia-water solution, whereas lightning on Earth originates from water clouds.
Other new findings suggest the violent thunderstorms for which the gas giant is known may form slushy ammonia-rich hailstones Juno’s science team calls “mushballs”; they theorize that mushballs essentially kidnap ammonia and water in the upper atmosphere and carry them into the depths of Jupiter’s atmosphere.
As with the InSight results below, there is much uncertainty with these results, especially the hypothesis of mushballs. These features fit their present data from Juno, but we must remember that the data is still somewhat superficial.
Click for full illustration.
Using data from Juno, scientists now theorize that Jupiter produces what they dub “shallow lightning” as well as ammonia-water hailstones dubbed “mushballs.”
The image to the right, cropped and reduced to post here, is only an artist’s illustration of the lightning. Sadly Juno’s camera doesn’t have the resolution to capture such flashes.
An unexpected form of electrical discharge, shallow lightning originates from clouds containing an ammonia-water solution, whereas lightning on Earth originates from water clouds.
Other new findings suggest the violent thunderstorms for which the gas giant is known may form slushy ammonia-rich hailstones Juno’s science team calls “mushballs”; they theorize that mushballs essentially kidnap ammonia and water in the upper atmosphere and carry them into the depths of Jupiter’s atmosphere.
As with the InSight results below, there is much uncertainty with these results, especially the hypothesis of mushballs. These features fit their present data from Juno, but we must remember that the data is still somewhat superficial.
Scientists make first rough estimate of Mars’ internal structure
Artist’s cutaway of theorized Martian interior
Using data from InSight’s seismometer, scientists have made their first approximation of the internal structure of Mars.
The first boundary Deng and Levander measured is the divide between Mars’ crust and mantle almost 22 miles (35 kilometers) beneath the lander.
The second is a transition zone within the mantle where magnesium iron silicates undergo a geochemical change. Above the zone, the elements form a mineral called olivine, and beneath it, heat and pressure compress them into a new mineral called wadsleyite. Known as the olivine-wadsleyite transition, this zone was found 690-727 miles (1,110-1,170 kilometers) beneath InSight. “The temperature at the olivine-wadsleyite transition is an important key to building thermal models of Mars,” Deng said. “From the depth of the transition, we can easily calculate the pressure, and with that, we can derive the temperature.”
The third boundary he and Levander measured is the border between Mars’ mantle and its iron-rich core, which they found about 945-994 miles (1,520-1,600 kilometers) beneath the lander. Better understanding this boundary “can provide information about the planet’s development from both a chemical and thermal point of view,” Deng said.
Because they only have one seismometer on the planet, this approximation has a great deal of uncertainty. Only when we have multiple such seismic instruments, scattered across the entire Martian globe, will scientists be able to hone their models more accurate of the planet’s interior.
Artist’s cutaway of theorized Martian interior
Using data from InSight’s seismometer, scientists have made their first approximation of the internal structure of Mars.
The first boundary Deng and Levander measured is the divide between Mars’ crust and mantle almost 22 miles (35 kilometers) beneath the lander.
The second is a transition zone within the mantle where magnesium iron silicates undergo a geochemical change. Above the zone, the elements form a mineral called olivine, and beneath it, heat and pressure compress them into a new mineral called wadsleyite. Known as the olivine-wadsleyite transition, this zone was found 690-727 miles (1,110-1,170 kilometers) beneath InSight. “The temperature at the olivine-wadsleyite transition is an important key to building thermal models of Mars,” Deng said. “From the depth of the transition, we can easily calculate the pressure, and with that, we can derive the temperature.”
The third boundary he and Levander measured is the border between Mars’ mantle and its iron-rich core, which they found about 945-994 miles (1,520-1,600 kilometers) beneath the lander. Better understanding this boundary “can provide information about the planet’s development from both a chemical and thermal point of view,” Deng said.
Because they only have one seismometer on the planet, this approximation has a great deal of uncertainty. Only when we have multiple such seismic instruments, scattered across the entire Martian globe, will scientists be able to hone their models more accurate of the planet’s interior.
Update on China’s future and on-going interplanetary missions
Link here. The article focuses on China’s plans to land future rover missions near the Moon’s south pole, but it also notes that Tianwen-1 made its first course correction on its way to Mars and is operating as expected.
Link here. The article focuses on China’s plans to land future rover missions near the Moon’s south pole, but it also notes that Tianwen-1 made its first course correction on its way to Mars and is operating as expected.
Out hiking
Posting will resume this afternoon. Diane wanted to do a mid-week hike and I needed desperately to get out. The gyms are closed, you can’t go anywhere without being accosted for not wearing a mask, and the news is just too depressing.
In the mountains you can at least make believe you can still breathe free in America.
We should be back by 2 pm (Pacific). I will begin posting then.
Posting will resume this afternoon. Diane wanted to do a mid-week hike and I needed desperately to get out. The gyms are closed, you can’t go anywhere without being accosted for not wearing a mask, and the news is just too depressing.
In the mountains you can at least make believe you can still breathe free in America.
We should be back by 2 pm (Pacific). I will begin posting then.
Government routinely warned against mask use — before it was political
Link here. The article gives numerous examples of state health departments noting the uselessness of masks as well as their potential harmful aspects. For example,
…the California Department of Health, which now obsesses about the use of masks, warned about the inherent harm in wearing masks, especially outdoors:
“Mask use may give the wearer a false sense of security, which might encourage too much physical activity and time spent outdoors. Also, wearing a mask may actually be harmful to some people with heart or lung disease because it can make the lungs work harder to breathe.”
How come nobody is raising any concern about universal masking given the obvious observation that covering one’s face makes the lungs work harder? [emphasis mine]
For anyone who does any research at all into this subject, and is willing to be even slightly honest about it, the data is pretty clear: Masks are likely to provide you no protection from COVID-19, while carrying health risks that are real.
What makes me depressed about all this is that I know I am wasting my breath. My readers might read this, but they mostly agree with me. For the general American populace, no one is interested in hearing anything negative about masks. They want them required by law, as shown by this poll, because it makes them feel safe.
And in our shallow society — plunging headlong into a dark age — feelings must always trump reality. Always. And don’t you dare say otherwise.
Never in my entire life have I ever lived in a culture that demanded such things of others. The country that once existed here was a country that respected the rights of others to live freely as they wished.
No more. Now people see it their right to demand that others agree with them, and follow orders, or else. And the criteria is always what makes them feel good, not what makes sense.
Link here. The article gives numerous examples of state health departments noting the uselessness of masks as well as their potential harmful aspects. For example,
…the California Department of Health, which now obsesses about the use of masks, warned about the inherent harm in wearing masks, especially outdoors:
“Mask use may give the wearer a false sense of security, which might encourage too much physical activity and time spent outdoors. Also, wearing a mask may actually be harmful to some people with heart or lung disease because it can make the lungs work harder to breathe.”
How come nobody is raising any concern about universal masking given the obvious observation that covering one’s face makes the lungs work harder? [emphasis mine]
For anyone who does any research at all into this subject, and is willing to be even slightly honest about it, the data is pretty clear: Masks are likely to provide you no protection from COVID-19, while carrying health risks that are real.
What makes me depressed about all this is that I know I am wasting my breath. My readers might read this, but they mostly agree with me. For the general American populace, no one is interested in hearing anything negative about masks. They want them required by law, as shown by this poll, because it makes them feel safe.
And in our shallow society — plunging headlong into a dark age — feelings must always trump reality. Always. And don’t you dare say otherwise.
Never in my entire life have I ever lived in a culture that demanded such things of others. The country that once existed here was a country that respected the rights of others to live freely as they wished.
No more. Now people see it their right to demand that others agree with them, and follow orders, or else. And the criteria is always what makes them feel good, not what makes sense.
Carol Burnett, Tim Conway, Harvey Korman – Simba
Fifth Starship prototype flies!
Shortly after take-off.
Right after landing.
After the smoke has cleared.
Capitalism in space: SpaceX’s fifth Starship prototype today successfully completed a 150 meter hop at its Boca Chica facility in Texas, landing vertically.
I have embedded a video of the flight below the fold.
The screen capture to the right shows it in flight. It is canted slightly because its one Raptor engine was not centered at its base but offset.
The next image shows the prototype standing vertical on the ground to the left of Starhopper, which flew one year ago. All told the flight lasted only about a minute.
The final image shows a close-up of the prototype after the smoke has cleared. Why it is canted on the ground is not clear. Its legs are not visible (they apparently are relatively small), so it is hard to say whether one buckled or not.
The launch platform might have sustained damage but they have another ready to go. It is even conceivable that they could fly this prototype again, though they already have prototype #8 waiting in the wings.
Regardless, expect SpaceX to keep its fast development pace going. I would not be surprised if they attempt another test flight in less than two weeks.
Screen captures courtesy of the LabPadre live stream.
» Read more
Shortly after take-off.
Right after landing.
After the smoke has cleared.
Capitalism in space: SpaceX’s fifth Starship prototype today successfully completed a 150 meter hop at its Boca Chica facility in Texas, landing vertically.
I have embedded a video of the flight below the fold.
The screen capture to the right shows it in flight. It is canted slightly because its one Raptor engine was not centered at its base but offset.
The next image shows the prototype standing vertical on the ground to the left of Starhopper, which flew one year ago. All told the flight lasted only about a minute.
The final image shows a close-up of the prototype after the smoke has cleared. Why it is canted on the ground is not clear. Its legs are not visible (they apparently are relatively small), so it is hard to say whether one buckled or not.
The launch platform might have sustained damage but they have another ready to go. It is even conceivable that they could fly this prototype again, though they already have prototype #8 waiting in the wings.
Regardless, expect SpaceX to keep its fast development pace going. I would not be surprised if they attempt another test flight in less than two weeks.
Screen captures courtesy of the LabPadre live stream.
» Read more
The dry barren plains of Tyrrhena Terra
Click for full image.
In a sense today’s cool image is a replay of one I posted in March, showing the dry barren terrain in the vast rough cratered highlands of Tyrrhena Terra, located along the equator of Mars between the giant basins of Isidis and Hellas.
Today’s image on the right, cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on March 26, 2020, and shows well the barrenness of this region. The surface appears quite solid, like bedrock, rather than the squishy soft surface of the northern lowland plains. Moreover, there is a lot of dust trapped in the low areas between the ridges, forming ripples that new data suggest move slowly across the surface. If you click on the full image, you will see that this terrain is far from local, and goes on in this manner for quite a distance in all directions.
This is a dry and forbidding place, about the size of the American southwest, from Texas to California.
The overview map below provides some context of Tyrrhena Terra’s location on Mars.
» Read more
Click for full image.
In a sense today’s cool image is a replay of one I posted in March, showing the dry barren terrain in the vast rough cratered highlands of Tyrrhena Terra, located along the equator of Mars between the giant basins of Isidis and Hellas.
Today’s image on the right, cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on March 26, 2020, and shows well the barrenness of this region. The surface appears quite solid, like bedrock, rather than the squishy soft surface of the northern lowland plains. Moreover, there is a lot of dust trapped in the low areas between the ridges, forming ripples that new data suggest move slowly across the surface. If you click on the full image, you will see that this terrain is far from local, and goes on in this manner for quite a distance in all directions.
This is a dry and forbidding place, about the size of the American southwest, from Texas to California.
The overview map below provides some context of Tyrrhena Terra’s location on Mars.
» Read more
Virgin Galactic again delays first commercial flight
Capitalism in space: Virgin Galactic, which has been repeatedly delaying its first commercial flight for more than a decade, has done so again, stating that it will not occur until 2021.
The company, in its fiscal second quarter financial results released Aug. 3, said it expected to perform two more test flights of SpaceShipTwo from Spaceport America in New Mexico, both of which will be powered flights. The vehicle has made two glide flights since moving to the spaceport early this year.
The first of those powered flights, scheduled for the fall, will have two pilots on board. It will also carry payloads for NASA’s Flight Opportunities program that arranges flights of experiments on suborbital vehicles, said George Whitesides, chief space officer and former chief executive of Virgin Galactic, in a company earnings call.
If that flight goes as expected, Virgin Galactic will then perform a second flight, this time with four mission specialists on board along with the two pilots. Those mission specialists “will evaluate the performance of our full customer cabin and associated hardware,” he said. The company unveiled the design of the cabin July 28, although Whitesides said they were still completing the installation of the cabin on the company’s current SpaceShipTwo vehicle, VSS Unity.
“Presuming things go as expected on this fully-crewed flight, we would then plan to fly Sir Richard Branson on the third powered flight from New Mexico,” he said. That flight would take place in the first quarter of 2021 and mark the beginning of commercial service, although Whitesides said it will also be a test flight of sorts. “Sir Richard is in a unique position to provide the ultimate cabin and spaceflight experience evaluation, as a visionary of the Virgin customer experience.”
The company also announced that it intends to sell stock shares to raise more capital. Right now the stock is selling for about $20.
I am no expert on the stock market, but to my mind this company’s chances of making big profits from suborbital flights is slim to none. They might make some money, but hardly enough ever to repay their investors. Virgin Galactic’s window for making big money in suborbital tourism closed forever with the success of SpaceX’s manned Dragon flight to ISS. The space tourism market is shifting to orbital space, something Virgin Galactic cannot provide. Worse, the cost for getting to orbit continues to drop, while this company can’t reduce its prices much.
Virgin Galactic provides a weak product in the present market, one that can only become weaker when compared to its competitors.
Capitalism in space: Virgin Galactic, which has been repeatedly delaying its first commercial flight for more than a decade, has done so again, stating that it will not occur until 2021.
The company, in its fiscal second quarter financial results released Aug. 3, said it expected to perform two more test flights of SpaceShipTwo from Spaceport America in New Mexico, both of which will be powered flights. The vehicle has made two glide flights since moving to the spaceport early this year.
The first of those powered flights, scheduled for the fall, will have two pilots on board. It will also carry payloads for NASA’s Flight Opportunities program that arranges flights of experiments on suborbital vehicles, said George Whitesides, chief space officer and former chief executive of Virgin Galactic, in a company earnings call.
If that flight goes as expected, Virgin Galactic will then perform a second flight, this time with four mission specialists on board along with the two pilots. Those mission specialists “will evaluate the performance of our full customer cabin and associated hardware,” he said. The company unveiled the design of the cabin July 28, although Whitesides said they were still completing the installation of the cabin on the company’s current SpaceShipTwo vehicle, VSS Unity.
“Presuming things go as expected on this fully-crewed flight, we would then plan to fly Sir Richard Branson on the third powered flight from New Mexico,” he said. That flight would take place in the first quarter of 2021 and mark the beginning of commercial service, although Whitesides said it will also be a test flight of sorts. “Sir Richard is in a unique position to provide the ultimate cabin and spaceflight experience evaluation, as a visionary of the Virgin customer experience.”
The company also announced that it intends to sell stock shares to raise more capital. Right now the stock is selling for about $20.
I am no expert on the stock market, but to my mind this company’s chances of making big profits from suborbital flights is slim to none. They might make some money, but hardly enough ever to repay their investors. Virgin Galactic’s window for making big money in suborbital tourism closed forever with the success of SpaceX’s manned Dragon flight to ISS. The space tourism market is shifting to orbital space, something Virgin Galactic cannot provide. Worse, the cost for getting to orbit continues to drop, while this company can’t reduce its prices much.
Virgin Galactic provides a weak product in the present market, one that can only become weaker when compared to its competitors.
Starship hop today?
UPDATE: They are close to trying again. If you refresh your screen, you will now have two iterations of the live stream. This will allow you to have two cameras visible at the same time, You can show the main “nerdie” camera on one, with their commentary, and show the wider “sapphire” camera on the second. You pick cameras by clicking on the camera icon in the menu bar at the bottom of the screen.
UPDATE: First attempt apparently aborted. No word yet if they will attempt again today.
UPDATE: Scrubbed on August 3rd, attempting again on August 4th.
Capitalism in space: SpaceX’s Starship team has scheduled the first 500 foot hop of the fifth Starship prototype today, after canceling yesterday’s attempt.
The window for Starship SN5’s 150m hop debut now stretches from 8am to 8pm CDT (13:00-01:00 UTC) on Monday, August 3rd. It’s currently unknown if SpaceX will offer its own live coverage of the test flight but several unofficial streams will likely be available from NASASpaceflight.com, LabPadre, SPadre, and more. Stay tuned for updates!
I have embedded LabPadre’s live stream below the fold, if you wish to run it in the background. They will have commentary when they note a “pad clear” signal.
» Read more
UPDATE: They are close to trying again. If you refresh your screen, you will now have two iterations of the live stream. This will allow you to have two cameras visible at the same time, You can show the main “nerdie” camera on one, with their commentary, and show the wider “sapphire” camera on the second. You pick cameras by clicking on the camera icon in the menu bar at the bottom of the screen.
UPDATE: First attempt apparently aborted. No word yet if they will attempt again today.
UPDATE: Scrubbed on August 3rd, attempting again on August 4th.
Capitalism in space: SpaceX’s Starship team has scheduled the first 500 foot hop of the fifth Starship prototype today, after canceling yesterday’s attempt.
The window for Starship SN5’s 150m hop debut now stretches from 8am to 8pm CDT (13:00-01:00 UTC) on Monday, August 3rd. It’s currently unknown if SpaceX will offer its own live coverage of the test flight but several unofficial streams will likely be available from NASASpaceflight.com, LabPadre, SPadre, and more. Stay tuned for updates!
I have embedded LabPadre’s live stream below the fold, if you wish to run it in the background. They will have commentary when they note a “pad clear” signal.
» Read more