Tag: engineering

Rocket Lab officially opens new rocket facility

9:15 am

Capitalism in space: Rocket Lab today unveiled a new rocket production facility designed to mass produce its rockets.

The new 7,500 sq/m (80,700 sq/ft) rocket development and production facility in Auckland, is designed for rapid mass production of the Electron rocket. Adding to Rocket Lab’s existing production facility and headquarters in Huntington Beach, California, the new facility brings Rocket Lab’s manufacturing footprint to more than 4.5 acres and enables the company to build an Electron rocket every week.

The new facility was officially opened on 12 October 2018 NZDT, by Rocket Lab Chief Executive Peter Beck and special guest William Shatner, best known for his role as Captain Kirk in the Star Trek series and films.

It suddenly occurred to me that the construction of this facility might explain the long delay in Rocket Lab’s next launch. I suspect they wanted to incorporate any corrections or redesign to the malfunctioning motor controller that was identified just prior to a planned launch in June.

This also suggests that once they complete their next two launches, now scheduled for November and December, they will hit the ground running and will be aiming for frequent launches, maybe as many as once per week.

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Updates on yesterday’s Soyuz failure

8:49 am

The Russian investigation into yesterday’s Soyuz launch failure has tentatively identified a malfunctioning valve as a possible source of the failure.

“The state commission has tentatively established a malfunction of the fuel dump valve of the rocket’s oxidizer tank:exhaust gas coming from the valve pushes a side section away from the center section. The valve appeared to be defective and failed to function,” the source said.

The valve passed the preflight check, he said. “It was opened before the launch, and closed afterwards consistent with the procedure,” the source said.

Once the rocket is fueled, the valve dumps redundant oxygen. “It is closed several minutes before the launch. It is supposed to open after the side section separates from the central section, but that did not happen,” the source said.

The “side section” refers to the Soyuz’s strap-on boosters. The “central section” refers to its core stage. From this report it appears the failure of the valve has been linked to a collision between the stages at separation.

“There are no final versions but the primary cause is understandable and is related to the collision of a side element making part of the first stage. A collision occurred during the separation of the first and second stages,” the Roscosmos official said.

“A deviation from the standard trajectory occurred and apparently the lower part of the second stage disintegrated. The rocket stopped its normal flight and after that the automatic system did its work,” Krikalyov said.

An element of the booster’s first stage collided with the second stage, Krikalyov said. “This could have been caused by the failure of the system of the normal separation, which should have been activated. We will analyze the causes in detail,” the Roscosmos official said.

This is obviously only a preliminary result, and should be treated with caution. Meanwhile, the investigation has also launched a criminal investigation. This doesn’t surprise me, as the Russians will sometimes consider some things, such as incompetence, as falling under criminal statutes. Considering the discovery of a drilled hole on a launched Soyuz capsule only a few weeks ago, however, I think they are probably even more paranoid than normal.

Update: Russia has decided they will launch a unmanned Soyuz mission before resuming manned flights.

This is definitely going to impact ISS operations, and cancels a December manned Soyuz launch.

The Soyuz capsules attached to ISS have a 200 day lifespan in space. Thus, the crews on board cannot stay past those dates, which means if launches get delayed for a significant period the station might end up without a crew. NASA has said ISS can be operated in this manner, but I also know they want to avoid this if at all possible.

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MASCOT’s journey on Ryugu

8:31 am

MASCOT's journey on Ryugu

MASCOT’s German science team has released a summary of the lander/hopper’s results and seventeen hour journey across the surface of the asteroid Ryugu. The image on the right, reduced and cropped to post here, shows the spacecraft approach, landing, and numerous hops across the surface. If you click on the image you can see the full high resolution image.

Having reconstructed the events that took place on asteroid Ryugu, the scientists are now busy analysing the first results from the acquired data and images. “What we saw from a distance already gave us an idea of what it might look like on the surface,” reports Ralf Jaumann from the DLR Institute of Planetary Research and scientific director of the MASCOT mission. “In fact, it is even crazier on the surface than expected. Everything is covered in rough blocks and strewn with boulders. How compact these blocks are and what they are composed of, we still do not know. But what was most surprising was that large accumulations of fine material are nowhere to be found – and we did not expect that. We have to investigate this in the next few weeks, because the cosmic weathering would actually have had to produce fine material,” continues Jaumann.

The spacecraft apparently bounced eight times after first contact, then executed three hops. The rubble pile nature that is observed I think explains why the Hayabusa-2 science team decided to delay its own landing for a few months so they could figure out a plan. It really appears that Ryugu does not have any smooth flat spots, as expect.

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Hayabusa-2 landing on Ryugu delayed until January

9:22 am

Because of the roughness of the surface of Ryugu, the Hayabusa-2 science team has decided to delay the landing of the spacecraft on the asteroid from the end of this month until late January at the earliest.

JAXA project manager Yuichi Tsuda said they needed more time to prepare the landing as the latest data showed the asteroid surface was more rugged than expected.

“The mission … is to land without hitting rocks,” Tsuda said, adding this was a “most difficult” operation. “We had expected the surface would be smooth … but it seems there’s no flat area.”

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This decision is a wise one. They will have the ability to land very precisely, and this will give them time to find the least risky spot. It does indicate however that the landing itself is going to be risky, which is probably why they want more time to gather data beforehand. Should the landing fail, the mission will essentially be over. This way they can maximize what they learn.

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Blue Origin delays New Shepard and New Glenn

9:15 am

Capitalism in space: Blue Origin announced yesterday that they are delaying the first manned test flights of their suborbital New Shepard spacecraft until next year.

The announcement also outlined their planned test launch schedule for their orbital New Glenn rocket, now set to launch for the first time in 2021, delayed from 2020 as previously announced.

I find it interesting that the same day the Air Force announces that it is giving this company a half billion dollars for development of this rocket, the company reveals that it is delaying the launch for one year. To my mind, the extra money should have helped them keep their schedule, instead of causing a delay.

What instead happens in Washington, however, is that the subsidized companies now stretch out their program in order to get more government money, focused more on that cash then on building anything. Witness for example Boeing and SLS.

What makes this strange is that Blue Origin already has plenty of capital, to the tune of about a billion per year, from Jeff Bezos. His investment should really be plenty for this company to do what it needs to do.

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Audit of SLS predicts more cost overruns and delays

9:03 am

Ever get a feeling of deja vu? A report by NASA’s inspector general yesterday slammed NASA and Boeing for their management of the SLS program, noting that the first unmanned launch will likely be delayed further and the cost for the program will go up another $4 billion.

The much-anticipated premiere of NASA’s Space Launch System rocket will likely see yet another push to the right, this time beyond mid-2020, as the program faces billions in cost overruns, according to a scathing audit released Wednesday by the agency’s Office of Inspector General.

Originally slated to launch from Kennedy Space Center’s pad 39B in December 2017, a 322-foot-tall version of the rocket known as SLS Block 1 will likely still be unprepared for a liftoff on the uncrewed Exploration Mission-1 by June 2020, auditors said. Even if teams could technically meet that deadline, NASA would need to offer Boeing, the contractor building the first two core stages, an infusion of $1.2 billion: $800 million to secure first stage delivery to KSC by December 2019 and an additional $400 million to make sure EM-1 launches by June 2020.

“Consequently, in light of the Project’s development delays, we have concluded NASA will be unable to meet its EM-1 launch window currently scheduled between December 2019 and June 2020,” a portion of the 50-page report reads.

The report [pdf] states that Boeing’s budget will have to double to $8 billion to meet these demands. In truth, SLS has cost the taxpayers a lot more than that, probably in the range in excess of $30 billion, if you add up all the yearly appropriations from Congress specifically applied to this rocket project and extend them through the first manned launch, now probably not taking place prior to 2024. (See my policy paper, Capitalism in Space, to see the breakdown.)

If this audit is correct, and I see no reason not to believe it, it will have taken the modern NASA more than twenty years to build and launch a single manned capsule, with a total cost of over $60 billion.

SpaceX built Falcon 1, Falcon 9, Falcon Heavy, Dragon cargo, and Dragon manned in about half that time, for a cost of about $2 billion. Falcon Heavy alone cost $500 million, and took only seven years.

From whom would you buy the product?

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Soyuz upper stage fails, forces emergency landing of manned capsule

8:28 am

During a manned Soyuz launch today the rocket’s upper stage failed, forcing an emergency landing of the Soyuz capsule.

A normally reliable Soyuz FG rocket malfunctioned two minutes after liftoff from Kazakhstan Thursday, forcing a Russian cosmonaut and his NASA crewmate to execute an emergency abort and a steep-but-safe return to Earth a few hundred miles from the launch site. Russian recovery crews reported the crew came through the ordeal in good shape. “NASA astronaut Nick Hague and Russian cosmonaut Alexey Ovchinin are in good condition following today’s aborted launch,” NASA Administrator Jim Bridenstine tweeted from Kazakhstan.

…two minutes and two seconds after liftoff, just a few seconds after the rocket’s four liquid-fueled strap-on boosters separated from the central core stage, something went wrong. Long-range tracking cameras showed the strap-ons and what appeared to be multiple other objects falling away from the rocket.

“Failure of the booster,” a translator called out, presumably relaying a report from Ovchinin to Russian mission control near Moscow. “Failure of the booster.” Moments later, he confirmed the Soyuz had separated from the rocket’s upper stage, saying “we are in weightlessness.”

During their descent they experienced g-loads as high as about 7 g’s, which is high but not unprecedented or even close to a record.

The quote above calls the Soyuz “normally reliable.” That description applied up until about a decade ago. In the past decade there have been several failures of that rocket, though all previous failures occurred with an unmanned payload.

With this failure the need to get the American commercial capsules operational has become very urgent, since we now have no way to get humans up to ISS. The astronauts on board ISS have Soyuz capsules for return, but no one can come up to replace them.

For example, one of the reasons cited for delaying the first SpaceX unmanned test flight from December into 2019 was scheduling difficulties at ISS. This might change now and allow an earlier flight.

I have embedded video of the launch below the fold.
» Read more

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Israeli private Moon mission delayed by SpaceX

10:08 pm

Because of a launch delay announced by SpaceX, the launch of a private Israeli Moon lander has been delayed from December until early 2019.

SpaceIL said Elon Musk’s SpaceX firm, whose rockets are set to carry the unmanned probe into space, had informed it of “a delay of a number of weeks to the beginning of 2019.”

SpaceIL stressed that the delay was SpaceX’s decision, noting in a statement that tests on their craft, shaped like a pod and weighing some 585 kilograms (1,300 pounds), were proceeding successfully.

As a secondary payload, the SpaceIL mission is at the mercy of SpaceX’s primary mission. It is unclear why SpaceX delayed the launch.

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Air Force awards contracts to ULA, Northrop Grumman, Blue Origin

2:54 pm

The competition heats up: The Air Force today announced contract awards to ULA, Northrop Grumman, and Blue Origin to help further the development of their new rockets.

The award to Blue Origin will be for development of the New Glenn Launch System. The award to Northrop Grumman Innovation Systems is for development of the OmegA Launch System. The award to United Launch Alliance will be for development of the Vulcan Centaur Launch System.

The Launch Service Agreements will facilitate the development of three domestic launch system prototypes and enable the future competitive selection of two National Security Space launch service providers for future procurements, planned for no earlier than fiscal year 2020.

The press release makes no mention of the amount of money being granted to these companies. Personally, I’d rather the government gave nothing until it actually bought real launch services from these companies, but it can only help the Air Force to have four different launch companies (when you include SpaceX) to draw upon. And the competition will force all four to reduce their costs and be creative.

Update: One of my readers in the comments below provided this link outlining the money granted for each contract, with ULA getting just under $1 billion, Northrop Grumman getting just under $800 million, and Blue Origin getting $500 million. This is not chicken-feed, and is in essence a subsidy for all three companies. The large amounts will act to discourage cost-savings, and in my opinion is a mistake. Whenever government bodies provide these kinds of subsidies prior to the deliver of services, the cost for the services inevitably is higher.

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China plans next Long March 5 launch for January 2019

9:19 am

The new colonial movement: China has begun the assembly of the third Long March 5 rocket for its next launch, now set for January 2019.

The article provides the most detailed information yet released about the failure during the rocket’s second launch:

The cause was determined to be damage to the turbopump on one of the two cryogenic YF-77 first stage engines, prompting a redesign of the structure and test-firing in Xi’an.

This is still somewhat vague, though it does confirm that the rocket engine needed a redesign.

Should this January 2019 launch go well, it will allow China to move forward on all of its ambitious space exploration plans, including the building of its own space station, numerous robotic missions to the Moon and Mars, followed eventually with manned missions to the Moon.

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Update on SpaceX’s effort to recover/reuse its rocket fairings

9:13 am

Link here. Key paragraph:

SpaceX recently began seriously attempting to recover Falcon 9 payload fairings, albeit almost exclusively during West Coast launches in order to let Mr. Steven attempt to catch the parasailing halves in the Pacific Ocean. Thus far, SpaceX engineers and technicians have not yet solved the challenging problems, although fairing halves have reportedly landed as few as 50 meters from Mr. Steven’s grasp and at least five have been recovered intact after landing gently on the ocean surface. On the East Coast, Falcon fairings are not nearly as lucky, typically alternating between smashing directly into the ocean and landing gently upon it, depending SpaceX’s need for experimental recovery data.

The article outlines some of the technical issues they have been facing, as well as how pieces of some fairings have been recovered many hundreds of miles away by fishermen.

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An update on China’s Chang’e-4 lunar lander

7:36 am

Link here. Chang’e-4 is set to land on the far side of the Moon, sometime in December. The article provides some additional details, including information about the likely landing site in Von Kármán crater. It also notes that there are three launches planned at the spaceport prior to the December launch, and that any issue on any of those launches could delay Chang’e-4’s lift-off. .

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Ceres’s poles have shifted by as much as 36 degrees

10:31 am

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?

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The central peaks of Copernicus crater

9:41 am

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.

Copernicus Crater

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Giant ice pinnacles on Europa

9:15 am

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.

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Competing proposals for military space operations

9:05 am

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.

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Hubble in safe mode, down to two gyroscopes

8:52 am

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.

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SpaceX successfully launches Argentinian radar satellite

7:36 pm

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.

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NASA pushes upgrades to interim and final SLS upper stages

7:27 am

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.

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Data from Voyager 2 suggests it is entering interstellar space

7:50 pm

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.

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Images of Mascot by Hayabusa released

7:43 pm

MASCOT descending towards Ryugu

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.

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New Horizons makes final big course correction

7:26 pm

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.

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IAU names two craters in honor of 50th anniversary Apollo 8 mission

8:33 am

Earthrise

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.

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MASCOT ends its mission on Ryugu, as planned

10:52 pm

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.

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Commercial crew test flights delayed again

10:43 pm

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.

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A vent on Mars?

1:29 pm

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.

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SpaceX turned down government money to build Falcon Heavy

10:17 am

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.
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NASA study says deep space will cause cancer and destroy stomachs

8:35 am

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.

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