Tag: spaceflight

Ingenuity’s next flight

1:17 pm

Ingenuity's flight plane for 12th flight
Click for full image.

The Ingenuity engineering team today announced their plans for the helicopter’s twelfth flight on Mars, scheduled for early tomorrow.

Ingenuity will climb to an altitude of 10 meters and fly approximately 235 meters east-northeast toward the area of interest in Séítah. Once there, the helicopter will make a 5-meter “sidestep” in order to get side-by-side images of the surface terrain suitable to construct a stereo, or 3D, image. Then, while keeping the camera in the same direction, Ingenuity will backtrack, returning to the same area from where it took off. Over the course of the flight, Ingenuity will capture 10 color images that we hope will help the Perseverance science team determine which of all the boulders, rocky outcrops and other geologic features in South Séítah may be worthy of further scrutiny by the rover.

The map above shows South Seitah in the yellow oval. The yellow line marks Ingenuity’s past flights. The white line marks the path Perseverance has taken south since landing. The dashed lines mark Perseverance’s planned route.

Thus, the helicopter will be obtaining aerial photos of the region in Seitah where the scientists want to send Perseverance, in order to help them pick the best route.

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Curiosity looks backwards

12:40 pm

Curiosity panorama looking southeast
Click for full resolution version. For original images go here and here.

Overview map
Click for interactive map.

Cool image time! The mosaic above was created from two photos taken on August 13, 2021 by Curiosity’s right navigation camera. It looks to the southeast, at the mountainous Martian terrain that the rover had been traveling just below for the past two months.

The overview map to the right shows with the yellow lines the approximate area covered by this mosaic. The white mountain at the top is the highest visible flank of Mount Sharp, and is beyond the right/bottom edge of the overview map. Mt. Sharp’s peak itself is not visible, as it is higher up and to the right. It is presently blocked by these mountainous foothills.

The science team probably took this image partly to provide another view of these mountains for comparison with earlier views. They can use this new data to look for changes as well as obtain better three-dimensional data.

They also took the image for the same reason I post it here. Having now climbed more than 1,500 feet from the floor of Gale Crater, Curiosity’s view is routinely spectactular. Why not enjoy it?

Mt. Sharp’s peak however is still about 13,000 feet above the rover. The climb up the mountain has just begun.

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Boeing to return Starliner to factory

11:11 am

Capitalism in space: According to a Wall Street Journal story today, Boeing and NASA have decided to remove the Starliner capsule from the Atlas-5 rocket and return it to Boeing’s factory in order to do a more thorough inverstigation into the capsule’s failing valves.

This decision means that the launch of the second unmanned demo test flight of Starliner will not occur in August, and will likely be delayed several more months. NASA and Boeing just held a press conference in which they made this decision official. During that conference they said they think the moist environment at Kennedy might have caused corrosion in the valves, which caused them to stick.

I once again wonder if Boeing has any quality control systems at all. For such a serious problem — the failure of 13 valves out of 24 — to suddenly pop up just hours before launch, when they have been developing this capsule for years, and even had an extra year and a half to check the capsule out after the failures during the first unmanned demo flight in December 2019, is somewhat astonishing, and very disturbing.

Others will argue that problems like this can always appear unexpectedly in space hardware. I say hogwash. Boeing is not inventing something new with Starliner. This is a capsule, using heritage engineering first invented in the late 1950s. It should not be so hard to get this right.

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South Korean company invests $300 million in OneWeb

10:51 am

Capitalism in space: Hanwah, a South Korean conglomerate, has now invested $300 million in private capital in the satellite communications company OneWeb.

U.K.-headquartered OneWeb expects regulatory approvals to complete the Hanwha transaction in the first half of 2022, bringing its total investment since emerging from bankruptcy protection in November to $2.7 billion. The startup has said it only needed $2.4 billion to fund its initial constellation of 648 satellites in low Earth orbit.

It reached that in June, after Indian telecom company Bharti Global doubled its investment to $1 billion to secure what would have been a 38.6% stake before Hanwha’s announcement. The U.K. government, French satellite operator Eutelsat and Japanese internet giant Softbank were each in line for just under 20% after making their own investments. U.S.-based Hughes Network Systems, which is supplying parts for OneWeb’s ground segment, also had a small stake.

Hanwha also wishes to build its own 2,000 satellite constellation, targeted for operation by 2030. This investment gives it access to OneWeb’s technology which it can later use.

For OneWeb, this new capital solidifies its full recovery from bankruptcy, and makes it a very viable competitor to SpaceX’s Starlink constellation.

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Russians accuse American astronaut of drilling hole in Soyuz

10:41 am

In several articles published today in the state-run Russian press, the Russians made the accusation that the hole and drilling damage that had been found on an in-orbit Soyuz capsule was put there by an American astronaut.

The first link above notes that while the Russians took a lie detector test, showing they didn’t drill the hole, the Americans refused. A second TASS link argues that their investigation proves that all the drill damage had to been done in orbit, for two reasons. First, they always test the capsule’s intergrity in a vacuum chamber before launch, and would have discovered it then. Second, the nature of the drill damage suggests it was done in zero gravity.

A third link provides an English translation of the more detailed Russian report, which made this direct accusation:

Firstly, the illness of the female astronaut, which is the first known incident of deep vein thrombosis in orbit, and the fact that Serena Maria Auñón-Chancellor had suffered the condition was published in a scientific article only after she had returned to Earth. This could have provoked ‘an acute psychological crisis’, which could have led to attempts by various means to speed up her return to the planet, according to my anonymous source. Secondly, for some reason unknown to Roscosmos, the video camera at the junction of the Russian and American segments was not working at that time. Thirdly, the Americans refused to perform a polygraph examination, while the Russian cosmonauts were polygraphed. Fourthly, Russia never had an opportunity to study the tools and the drill which are aboard the ISS to see if there are any signs of metal shavings from the hull of our ship’s orbital module.

This longer article also makes the claim that, because of the location of some of the drill attempts, whoever did drilling had no knowledge of the Soyuz’s construction.

All this may be true, but it conveniently ignores several very important facts: The one successful drillhole that caused the leak had been patched, which would have prevented any leak during the vacuum tests on the ground. The leak occurred because the patch was not designed to survive the hostile environment of space and eventually failed.

Also, the Russians’ own investigation had found that there was plenty of time on the ground for this sabotage to have occurred, so saying it had to have happened in space is incorrect.

Finally, the claim that the drill damage had to have been done in zero gravity is pure opinion, and hardly evidence.

In other words, it sounds as if the Russians are trying to shift blame from themselves (and an unknown ground worker) to an American astronaut. It is certainly possible that their claims are true, but they seem incredibly implausible. Much more likely would be sabotage on the ground by a very disgruntled Russian worker, routinely underpaid and resentful of the corruption that permeates Roscosmos and all of Russian society.

Such a conclusion however would be beyond embarrassing for the Putin government and the head of Roscosmos, Dmitry Rogozin. It is far better to place the blame on an American, especially because the end of the U.S.-Russian partnership on ISS is only a few years away.

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Branson sells more than ten million shares of Virgin Galactic

10:07 am

Capitalism ?in? space? Continuing his steady off-loading of Virgin Galactic stock since the company went public, Richard Branson has sold another 10.5 million shares, lowering his steadily shrinking ownership share another 4% to 18% total.

The sale garnered him $300 million in cash.

When the company went public in 2019, Branson reserved for himself 51% ownership. Since then he has periodically sold off large chunks, usually well timed to specifically planned events that worked to pump up the stock’s price. This last sale obviously was planned to take advantage of the publicity following Branson’s own suborbital flight in July.

While Virgin Galactic might have a future in suborbital space tourism, I remain very skeptical. It certainly does not have a future in the larger orbital market, as it has no experience building real rockets (Virgin Orbit was spun off this company years ago, taking with it all that experience). Thus, the company has very limited possibilities. As the orbital market grows and becomes dominant, I can’t see there being that much long term interest in short suborbital hops.

I think Branson agrees with me, which is why he is getting out when the getting is good. That he is following the classic and very corrupt method of “pump and dump” only solidifies my belief that he is an outright con-man.

That the mainstream press continues to genuflect before him only tells us how corrupt and incompetent that press has become.

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A chain of Martian sinkholes

3:19 pm

Chain of sinkholes on Mars
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on June 17, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a somewhat straight depression with several wider and deeper pits along it.

The feature immediately suggests sinkholes that exist because the ground is sagging into voids below ground. Yet, both the straight and circular depressions also appear filled, showing no evidence that they connect to any below ground cavities.

Are the sinks the result of a fissure produced by a graben, when two large blocks shift relative to each other to cause a fissure to appear? Or are they evidence of an underground lava tube? Or maybe they are the filled remains of a now mostly buried canyon carved by water or ice?

As always, a wider view helps clarify things, though whether it answers the question is uncertain.
» Read more

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The number of new smallsat rocket startups continues to grow

9:31 am

Capitalism in space: According to a new annual report, the number of new smallsat rocket startups that have been proposed continues to grow, though the number presently in actual development or operation declined slightly in the past year.

That total has grown to 155 vehicles, he said, ranging from 10 vehicles in operation to several dozen that have gone defunct since the survey started in 2015, when about 30 vehicles were included. “I was really expecting to see a slowdown in the number of new launch vehicles that we were seeing coming out of the woodwork in the last few years,” he said during a conference session Aug. 11. “It turns out that slowdown has not happened at all.”

There have been some changes in the industry, though. He found the number of vehicles in active development declined slightly from last year, to 48, with a decrease as well in the number of vehicle concepts on a “watch” list that have not yet entered active development. More than 40 vehicles are now classified as defunct, about 10 more than last year. “This is not surprising given the challenges of getting one of these vehicles fielded,” he said.

The U.S. has the most smallsat startups in development, 22, but China has the most that the report defines as operational, six of ten. This last number should change considerably if the planned launches of six or so American smallsat rocket startups occur as promised in the next six months.

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China to fly asteroid sample mission in ’24

9:19 am

The new colonial movement: Chinese scientists have revealed that China is now building an asteroid sample mission to launch in ’24 and grab samples in ’25 from the near Earth asteroid dubbed Kamoʻoalewa.

According to a correspondence in Nature Astronomy, there are two typical approaches to sampling asteroids like Kamoʻoalewa, namely anchor-and-attach and touch-and-go.

The former requires delicate and dangerous interactions with the planetary body but allows more controllable sampling and more chances for surface analysis. The latter, used by Hayabusa 2 and OSIRIS-Rex, is a quick interaction facilitated by advanced navigation, guidance and control and fine control of thrusters.

China’s mission will use both architectures in order to “guarantee that at least one works.” The paper states that there is “still no successful precedent for the anchor-and-attach architecture,” meaning a possible deep space first. A 2019 presentation reveals that China’s spacecraft will attempt to land on the asteroid using four robotic arms, with a drill on the end of each for anchoring.

The attempt to do both these approaches is audacious, especially because the evidence from both OSIRIS-REx and Hayabusa-2 is that it will be difficult to safely land and hold onto a rubble pile asteroid. The material is too loosely held together.

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Confirmed: Perseverance sample was too crumbly and poured away

8:58 am

Perseverance scientists have confirmed that the reason their sample container was empty once stored on the rover was because the material that they had drilled into was more crumbly than expected, and when the core was extracted from the ground the powder simply poured out of the core tube.

The team has decided to move on.

Rather than try again with the cratered floor fractured rough, Perseverance has already departed the area and is heading towards a region named South Séítah, which likely contains layered sedimentary rocks that are more similar to the Earth rocks that engineers drilled during tests before the mission’s launch. “We are going to step back and do something we are more confident of,” says Trosper. The rover will try to drill a core there, perhaps in early September. When it does, engineers will pause the automated drilling process to check whether a core has been extracted before the rover takes the next steps of sealing the tube and storing it away.

While it makes sense to find a different place to drill for a core sample, it appears that Perseverance is designed in a manner that it can do no analysis of any drill hole material:

Curiosity and Perseverance are similar in many respects — Perseverance was actually built using much of the leftover hardware from Curiosity — but there is one major difference in how they drill into the Martian surface. Curiosity intentionally grinds rock into powder, which it then places inside analytical instruments it has onboard to conduct scientific studies. NASA designed Perseverance to extract intact cores that slide into its sampling tubes. So crumbly rocks are good for Curiosity, but not for Perseverance.

If Perseverance can do no analysis of any drillholes, this limits the science it can do significantly. While putting aside samples for later return to Earth is an excellent idea, to make this the priority so that Perseverance can analyze nothing seems a terrible decision. What if that sample return mission never gets built?

If my supposition here is correct it also means NASA’s repeated claim that Perseverance is searching for ancient life on Mars is even more of a lie than I had assumed. It isn’t merely that this claim is a distortion of Perseverance’s actual research goals — to study the geology of Mars — the rover can’t look for ancient life. It has no way of looking at any samples it digs up.

I am not sure if my conclusions here are entirely correct. For example, maybe they hope to find this alien evidence by looking at the sealed core samples they store. Unfortunately, I have no idea, because I am somewhat handicapped in describing Perseverance’s day-by-day operations because, unlike Curiosity, the Perseverance team is providing no regular updates of their operations at their blog. While the Curiosity team posts something at least twice a week, the Perseverance team has posted nothing since just after landing in February. I’ve emailed NASA about this, but have gotten no response.

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India’s GSLV rocket fails in first launch since 2019

6:09 pm

India’s attempt today to resume launches of its large GSLV rocket, stalled because of the Wuhan panic since its last launch in 2019, failed today when something went wrong with the third stage.

This entirely Indian-built rocket is the one they plan to use for their manned missions. This failure will certainly set that program back, already delayed significantly because of the shut down of their entire launch industry because of COVID-19.

The satellite, also Indian-built, is also a big loss. It was to be the first in a series of Earth observation satellites.

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OSIRIS-REx scientists refine Bennu’s future Earth impact possibilities

1:28 pm

Using the orbital and gravity data compiled during OSIRIS-REx’s visit to the asteroid Bennu, scientists have refined its future orbits as well as the most likely moments it might impact the Earth.

In 2135, asteroid Bennu will make a close approach with Earth. Although the near-Earth object will not pose a danger to our planet at that time, scientists must understand Bennu’s exact trajectory during that encounter in order to predict how Earth’s gravity will alter the asteroid’s path around the Sun – and affect the hazard of Earth impact.

Using NASA’s Deep Space Network and state-of-the-art computer models, scientists were able to significantly shrink uncertainties in Bennu’s orbit, determining its total impact probability through the year 2300 is about 1 in 1,750 (or 0.057%). The researchers were also able to identify Sept. 24, 2182, as the most significant single date in terms of a potential impact, with an impact probability of 1 in 2,700 (or about 0.037%).

Although the chances of it hitting Earth are very low, Bennu remains one of the two most hazardous known asteroids in our solar system, along with another asteroid called 1950 DA.

This paper’s conclusions are confirming what had been found earlier in the mission, while OSIRIS-REx was still flying in formation with the asteroid. Nonetheless, it is essential to refine these numbers as precisely as possible, so this confirmation is excellent news.

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Glacial ice sheets on Mars?

1:10 pm

Glacial ice sheets on Mars?
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on June 29, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The location is in Mars’ glacier country, that strip of chaos terrain that runs about 2,000 miles along the transition zone between the northern lowland plains and the southern cratered highlands at 30 to 47 degrees north latitude. This particular feature is located in Deuteronilus Mensae, the westernmost region of that strip of chaos.

I call this glacier country because practically every image taken by MRO’s high resolution camera in this region suggests the presence of glacial material covered by a protective layer of debris. The photo to the right is typical, though a bit more puzzling because of the depressions that appear to run along highpoints.

As usual, the overview map below helps explain what we are looking at.
» Read more

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India begins countdown for 1st GSLV rocket launch since 2019

9:52 am

India today began the countdown for its first GSLV rocket launch in more than two years, since it launched the lunar orbiter Chandrayaan-2 with the lunar rover/lander that crashed onto the surface shortly thereafter.

The launch is targeted for 8:13 p.m (Eastern) tonight.

The long gap in GSLV launches was almost entirely because of India’s panic over the Wuhan flu. For the past year and a half its space agency ISRO has completed three just launches, all of which were delayed until late in 2020 because of the panic. Prior to that panic, India had hoped to launch as many as 8 to 12 times in ’20 and ’21 each. Instead, their space industry shut down, and the commercial business they hoped to capture went to American private companies instead.

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Intuitive Machines awards SpaceX another lunar lander launch contract

9:36 am

Intuitive Machines Nova-C lunar lander
Artist’s impression of Intuitive Machines lunar lander,
on the Moon

Capitalism in space: Intuitive Machines announced yesterday that it has awarded SpaceX’s Falcon 9 rocket the launch contract for its third unmanned lunar lander, making SpaceX its carrier for all three.

The key quote however from the article is this:

Intuitive Machines’ first two lander missions are carrying out task orders for NASA awarded under its Commercial Lunar Payload Services (CLPS) program. However, IM-3 is not linked to any CLPS missions. Marshall said that the mission “has an open manifest for commercial and civil customers.”

In other words, this third launch is being planned as an entirely private lunar robotic mission. Intuitive Machines is essentially announcing that it will launch the lander and has room for purchase for anyone who wants to send a payload to the Moon. This opportunity is perfect for the many universities that have programs teaching students how to build science payloads and satellites. For relatively little, a school can offer its students the chance to fly something to the lunar surface. Not only will it teach them how to build cutting edge engineering, it will allow those students to do cutting edge exploration.

This is the whole concept behind the recommendations I put forth in my 2016 policy paper, Capitalism in Space. If the government will simply buy what it needs from the private sector, and let that sector build and own what it builds, that sector will construct things so that their products can be sold to others, and thus expand the market.

Since around 2018 NASA and the federal government has apparently embraced those recommendations, and we are about to see that policy bear fruit in unmanned lunar exploration. Below is a list of all planned robotic lander missions to the Moon, all scheduled for the next four years:
» Read more

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Rocket Lab to launch three times in one month, beginning in late August

8:55 am

Capitalism in space: Rocket Lab yesterday announced that it is aiming to complete three launches of its Electron rocket in less than a month, with the first scheduled for late August.

Scheduled to lift-off from Launch Complex 1 on New Zealand’s Mahia Peninsula in late August, the ‘Love At First Insight’ mission will be Rocket Lab’s 22nd Electron launch overall and fifth mission of 2021. ‘Love At First Insight’ is the first in a rapid succession of scheduled Electron launches between late August through September that represent the company’s fastest launch turnarounds to date.

All three launches are for the company BlackSky, which is putting into orbit a constellation of Earth-imaging small satellites.

Since 2018 Rocket Lab has repeatedly promised that it will soon ramp up its launch rate to monthly, and then weekly. For a variety of reasons, mostly relating to two launch failures in the past year, that promise has not been kept. If the company succeeds in putting these six Black Sky satellites into orbit on three quick launches, it will finally come close to demonstrating that pace.

Rocket Lab will reinforce that promise if it also completes its manifest of 2021 launches, which calls for three more launches for a total of nine launches in ’21, six of which will have occurred in the year’s last four months.

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Antares rocket successfully launches Cygnus freighter to ISS

8:36 pm

Capitalism in space: Northrop Grumman’s Antares rocket today successfully launched a Cygnus cargo capsule to ISS.

This was the fourth launch this year for Northrop Grumman’s launch division, which was once the company Orbital ATK. It was also the most in a single year for that division since it launched five times in 2013.

26 China
20 SpaceX
12 Russia
4 Northrop Grumman

The U.S. now leads China 31 to 26 in the national rankings.

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Inspector general slams NASA spacesuit program

12:39 pm

NASA's failed spacesuit
NASA’s failed spacesuit

A NASA inspector general report released today [pdf] bluntly slammed NASA endless and much delayed project to develop a new spacesuit for its Artemis program.

After noting that the project has been ongoing at NASA for fourteen years, the summary then blasts the program hard:

NASA’s current schedule is to produce the first two flight-ready xEMUs [NASA acronym for spacesuits] by November 2024, but the Agency faces significant challenges in meeting this goal. This schedule includes approximately a 20-month delay in delivery for the planned design, verification, and testing suit, two qualification suits, an ISS Demo suit, and two lunar flight suits. These delays—attributable to funding shortfalls, COVID-19 impacts, and technical challenges—have left no schedule margin for delivery of the two flight-ready xEMUs. Given the integration requirements, the suits would not be ready for flight until April 2025 at the earliest. Moreover, by the time two flight-ready xEMUs are available, NASA will have spent over a billion dollars on the development and assembly of its next-generation spacesuits.

Given these anticipated delays in spacesuit development, a lunar landing in late 2024 as NASA currently plans is not feasible. [emphasis mine]

This bears repeating: NASA will spent more than a billion dollars and fourteen years to build two spacesuits. What a bargain! Imagine if we have to pay a tailor for fitting!

And yet, despite this incredibly inefficient use of money, the report also finds that NASA doesn’t have enough to get the suits made on time!

Besides the endless managerial incompetencies noted in the report, it also notes several technical issues contributing to the problems, including one case where “staff used the wrong specifications” causing a unit’s failure.

Overall, the entire management of this program by NASA and the government appears to have been confused, incoherent, wasteful, and unable to get the job done, a pattern quite typical of almost every government project for the past four decades. Yet, though the report notes that in October 2019 the agency had finally decided to dump this failed program entirely and instead hire private companies to build the suits, the report criticizes this change, noting that the commercial contractors will not be required to use NASA designs, meaning the $420 million NASA has spent will literally be wasted.

So what? That money has been wasted already. I am quite willing to bet that for no more than a quarter of that cost, two private companies could get new spacesuits ready, and do it quickly, as long as our entirely incompetent government gets out of their way.

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Eric Berger: FAA regulators should get out of the way

10:16 am

In a essay today for Ars Technica, Eric Berger makes note of the progress that SpaceX is making on its Starship/Superheavy rocket, and points out that the one major obstacle that SpaceX cannot control and that stands in its way is the revised “environmental assessment” the FAA still must approve to permit the rocket to launch from Boca Chica.

Perhaps the biggest hurdle of all will be clearance from the Federal Aviation Administration, which is working with SpaceX to conduct an environmental assessment of launching such a mammoth rocket from these South Texas wetlands. After a “draft” of this assessment is published, there will be an approximately 30-day period for public comments. This will be followed by other steps, including a determination by the FAA on whether SpaceX’s proposed environmental mitigations will be enough or if more work is required.

The stacking of the rocket late last week, and the photos released by Musk of that stacking, Berger sees as Musk’s effort to quietly apply pressure on those bureaucrats to get their work done already. As he writes, “Holding back Starship means holding back this progress, Musk wanted regulators to understand.”

Read the whole essay. In addition to illustrating the poltical games required by SpaceX to get past the stifling rules of our modern government, it very nicely shows how America has changed since the early 20th century. Then, no such regulators stood in the way, and Americans were thus about to build fast and with great skill, reshaping the cities of the world forever.

Though I expect the politics of the moment to favor SpaceX, forcing the FAA to get its work done quickly to allow the rocket to take off as planned, this is only going to happen because of the political clout SpaceX has with the public, and thus with politicians. For small companies no such clout exists, and thus expect U.S. innovation to continue to suffer in the coming years because we have given our govenrment too much power over our lives.

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China gives vague hints about its manned lunar lander

10:02 am

According to this Space News article today, China has recently allowed some tantalizing hints become public about its plans to build a manned lunar lander.

The brief news report from Xiamen University School of Aeronautics and Astronautics July 1 (Chinese) names individuals leading projects pertinent to China’s human lunar landing plans and notably refers to the landing project as a “national strategy”.

…The report names Yang Lei as “chief commander of the crewed lunar landing vehicle system” at the China Academy of Space Technology (CAST), a subordinate to the state-owned space and defense contractor China Aerospace Science and Technology Corp. (CASC). Yang was accompanied for the visit to Xiamen University by the project’s deputy chief commander and another involved in CAST’s new-generation crew spacecraft developed for deep space journeys. Other CASC subsidiaries are working on a new human-rated launch vehicle.

No details of the lander were provided during the meeting, in which current progress and future plans for human moon landings were presented. A number of slides were published but were intentionally blurred out.

Such secrecy is not unusual for China. It is one of the reasons it opposes the Artemis Accords, which require a transparancy in plans that China does not wish to give.

The secrecy however suggests that while they have now named the individuals in charge of the project, they have not yet settled on their design for that lander, and are exploring options. Based on long term schedule for lunar exploration that China and Russia have jointly announced, the first manned landings are planned sometime after ’26.

To meet that schedule they need to get moving on building that lander, now. This story suggests they are now gearing up to do that.

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Update on SLS: launch prep continues, launch in 2021 remains doubtful

9:49 am

Link here. The key milestone recently achieved was powering up the core stage with all stages stacked.

The initial power up was a significant milestone in pre-launch processing, marking the beginning of the systematic checkouts of the vehicle and ground systems that will be used for the first launch on Artemis 1.

It continues to appear that NASA and its SLS contractors are striving hard to avoid another delay and get the rocket off on its first unmanned test flight in the November/December timeframe that has been penciled in for the last two years. However, as noted in the article, meeting that deadline will be difficult, and the launch date is still likely to slip into early ’22.

The complexity of the tasks needed to get SLS ready becomes obvious if you read the article. This remains a very cumbersome and difficult rocket to launch. Though the prep this time is greater because it is the first time they are doing it, the assembly for later launches will not be much simpler. At best NASA hopes to trim the prep time from one year to six months.

Compare that with SpaceX’s goals on Starship/Superheavy. It is clear the company is aiming for the ability to prep the rocket and get it to the launchpad in mere days, not months, and by all measures it seems to be achieving that goal.

Even if one ignores the gigantic development cost difference ($50+ billion for SLS, $6 billion for Starship/Superheavy), the difference in getting the two rockets to the launchpad makes SLS the clear loser. How can NASA possibly expect to settle the solar system with a rocket that at best can only launch twice a year?

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Space Force adds three more rocket startups to its rapid launch program

9:35 am

Capitalism in space: The Space Force announced today that it has added the three smallsat rocket companies ABL, Astra, and Relativity to its program, dubbed OSP-4, to develop rockets that can be launched quickly at a moment’s notice.

OSP-4 is an indefinite delivery/indefinite quantity (IDIQ) contract for rapid acquisition of launch services. Vendors compete for individual orders, and have to be able to launch payloads larger than 400 pounds to any orbit within 12 to 24 months from contract award.

The OSP-4 contract vehicle was created in October 2019 and eight companies were selected then: Aevum, Firefly, Northrop Grumman, Rocket Lab, SpaceX., United Launch Alliance, VOX Space [Virgin Orbit], and X-Bow Launch.

There are now 11 vendors in the program that will compete for 20 missions over the next nine years. OSP-4 is authorized up to $986 million for launch contracts over that period.

Of these eleven companies, five have operational rockets (Northrop Grumman, Rocket Lab, SpaceX, Virgin Orbit, and ULA) and five have announced plans to do their first orbital launch this year (Aevum, ABL, Astra, Relativity, and Firefly), with Astra’s first orbital flight scheduled for later this month. The schedule of the remaining X-Bow remains unknown.

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Starliner launch scrub: 13 of 24 of the capsule’s propulsion valves failed to work

9:23 am

It now appears that the launch scrub last week of Boeing’s Starliner second unmanned demo flight to ISS occurred because thirteen valves in the capsule’s propulsion valves all failed to open during prelaunch testing.

Over the weekend, the team made “positive progress,” a spokesperson said Monday, allowing the company to continue to plan for a launch this month. The company has found “no signs of damage or external corrosion,” Boeing said in a statement Monday. “Test teams are now applying mechanical, electrical and thermal techniques to prompt the valves open.” As a result, more than half of the valves “are now operating as designed,” it said, and work would continue on the others “in the days ahead.”

In a blog post, NASA said that “if all valve functionality can be restored and root cause identified, NASA will work with Boeing to determine a path to flight for the important uncrewed mission to the space station.” The earliest opportunity would come in mid-August, it said.

But Boeing still does not know what caused the valves to remain closed when they needed to be in the open position, and it is unclear how long determining that would take. As a result, some in the aerospace industry are skeptical the company could launch this month.

They have managed to get seven of those thirteen valves working again.

That 13 of 24 failed to function correct strongly suggests the problem isn’t random but is instead a fundamental design problem that needs to be identified prior to launch.

That such a problem has only been discovered now, during the launch countdown, does not reflect well on Boeing or its capsule. That the problem was not noticed in the year and a half delay caused by the software problems during the first unmanned demo flight in December 2019 makes this problem even more disturbing.

In fact, it is downright shocking. It makes one wonder about Boeing’s entire operation, considering the disastrous problems the company has also had with its commercial and military airplane projects in recent years. Does the company have no quality control systems in place, at all?

I truly hope Boeing gets this fixed and Starliner flying, but right now they need to fly a number of times, including reusing a capsule a few times, before I’d recommend anyone buying a ticket.

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Peeling thin layers on a Martian plateau

1:22 pm

Peeling thin layers on Mars
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken on May 14, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the science team labels as “light-toned layered deposits.”

Their focus, rightly from a geologist’s perspective, is the contrast in color between different layers, suggesting different composition and thus a different formation history for each layer.

To me, what made this feature appealing is the thinness and number of its layers. It reminded me of fillo pastry, “unleavened flour dough formed into very thin sheets or leaves.”

If you look at the full image you will see that cropped section only covers one edge of a tongue-shaped plateau, with similar layers revealed along its entire cliff wall. It is almost like those layers have been peeling off for eons to leave the plateau behind.

The location below gives some context.
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New data suggests Gale Crater was never filled with lake

12:28 pm

The uncertainty of science: A new review of data from Curiosity now suggests that Gale Crater was not filled with a lake in the past — as generally believed — but instead simply had small ponds on its floor.

Previous analyses of data from Curiosity have relied heavily on a measure called the chemical index of alteration to determine how rocks were weathered over time. Joseph Michalski at the University of Hong Kong and his colleagues have suggested that because this measure was developed for use on Earth, it may not be valid in the extreme Martian climate.

Instead, they analysed the concentrations of various compounds that are expected to change based on different types of weathering over time. They found that some of the layers of rock Curiosity examined did interact with water at some point in their past, but more are likely to have formed outside of the water. “Over hundreds of metres of strata, it seems that the only layers that are demonstrably lacustrine [formed in a lake] are the lower few metres,” says Michalski. “Of the rocks visited by the rover… the fraction that is demonstrably lacustrine is something like 1 per cent.”

These rocks were mostly in the lowest few metres of sediments in the crater, suggesting the lake was not nearly as deep or extensive as we thought. “There was likely a small lake or more likely a series of small lakes in the floor of Gale crater, but these were shallow ponds,” says Michalski.

This conclusion also aligns with other recent work proposing that Gale Crater was always cold and never had running water.

None of this is proven, one way or the other, though this new conclusion would make it easier to explain Mars entire geological history. Trying to create models for Mars’ past climate that allowed large amounts of liquid water on its surface have so far been difficult at best, and have generally been unconvincing. Eliminating the need for liquid water will make explaining Mars’ geology much simpler.

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Rocket Lab shifts another launch from Virginia to New Zealand

12:15 pm

Foot-dragging by NASA bureaucrats has apparently forced Rocket Lab to shift the launch of its CAPSTONE lunar orbit cubesat from its new launchpad in Wallops Island, Virgina, to its New Zealand launchpad.

CAPSTONE would be the second Rocket Lab mission in recent weeks that shifted from Virginia to New Zealand. The most recent Electron launch July 26 placed into orbit Monolith, a smallsat developed by the Air Force Research Laboratory. Monolith was originally going to launch on the first Electron mission from Virginia.

Rocket Lab said at the time that it shifted the launch of Monolith because of ongoing work by NASA to certify the software for the rocket’s autonomous flight termination system. A NASA spokesman said in July that the agency expected to complete certification of the unit by the end of the year.

Note too that Rocket Lab had originally hoped to launch from Wallops in 2020, but was forced to delay that launch to 2021 then because of NASA’s inability to approve this system. Now it looks like they won’t be able to launch in ’21 either.

This flight termination system is likely the same one that Rocket Lab has successfully used now for four years and more than twenty launches in New Zealand. Why it should take NASA literally years to approve it is shameful. As I wrote in November,

While I have no evidence of this, I cannot help being suspicious of these various government agencies. For years numerous people in the government put fake roadblocks up to slow or stop SpaceX’s first manned launch, merely because it threatened their turfs. This autonomous termination system will make the ground crews at Vandenberg and at Cape Canaveral irrelevant, and I would not be surprised if some of these issues were drummed up to delay or block this system because of that.

I know I am being cynical, but based on history it is not unreasonable to be so.

I think we are seeing evidence now that my cynicism was entirely justified.

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Perseverance’s first sample grab fails

11:49 am

Perseverance's first core sample drill location
Click for full image.

The first attempt by the Mars rover Perseverance to obtain a core sample has apparently failed.

The failure does not appear to be technical. All the hardware appears to have worked. When they inspected the interior of the hollow core drill however no sample was seen inside.

“The sampling process is autonomous from beginning to end,” said Jessica Samuels, the surface mission manager for Perseverance at NASA’s Jet Propulsion Laboratory in Southern California. “One of the steps that occurs after placing a probe into the collection tube is to measure the volume of the sample. The probe did not encounter the expected resistance that would be there if a sample were inside the tube.”

…”The initial thinking is that the empty tube is more likely a result of the rock target not reacting the way we expected during coring, and less likely a hardware issue with the Sampling and Caching System,” said Jennifer Trosper, project manager for Perseverance at JPL. “Over the next few days, the team will be spending more time analyzing the data we have, and also acquiring some additional diagnostic data to support understanding the root cause for the empty tube.” [emphasis mine]

Do the highlighted words remind you of anything? They do for me. The first thing I thought of when I read this was the drilling mole for InSight’s heat sensor. It failed in its effort to drill into the Martian surface because the nature of the Martian soil was different than expected. It was too structurally weak, and would break up into soft dust rather than hold together to hold the mole in place.

In the case of Perseverance, it appears right now (though this is not confirmed) that the drill successfully drilled into the ground, with its core filling with material, but when the core was retracted, that material simply fell out, as if it was too structurally weak to maintain itself inside the core.

The photo above of the drill hole and its thick pile of dust appears to support this hypothesis. Even though they drilled into what looked like bedrock the act of drilling fragmented that bedrock apart.

I am speculating based on limited information, so I am likely wrong. For example, the drill certainly has sensors to detect the density and structural strength of the rock it is drilling into. The engineers will check those numbers during drilling. If the rock doesn’t appear dense enough or structurally strong enough for a core sample, I would expect them to pick a different spot.

If true however it means that obtaining core samples at many locations in Jezero Crater will simply not be possible. This does not mean no samples will be obtained, because there are definitely places on Mars where the ground’s structure is solid enough for this method to work. Curiosity definitely found this to be true, when if found several places on Vera Rubin Ridge where its drill didn’t have the strength to penetrate the rock.

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The trials and tribulations of Blue Origin’s BE-4 engine

12:09 pm

Link here. The article tries to provide some explanations for the delays at Blue Origin that have put the BE-4 engine years behind schedule.

The first and most important fact gleaned from the article is that flightworthy versions of this engine will not be ready this summer as promised, and will likely not get delivered to ULA for its Vulcan rocket before the end of the year, causing its inaugural launch to be delayed to the second half of ’22. This also means that Blue Origin’s own orbital rocket, New Glenn, will likely not launch until late next year, at the earliest.

Moreover, the engines that Blue Origin will deliver to ULA will not be fully tested, and might require replacement if tests on other engines reveal more problems.

The article’s most important revelation about the delays however is this:

One of the most persistent problems, sources said, is that the BE-4 engine testing and development program has been relatively “hardware poor” in recent years. Effectively, this means that the factory in Washington has not had enough components to build development engines, and this has led to extended periods during which no testing has occurred on the stands in Texas.

It was surprising to hear this because back in the spring of 2017 Blue Origin stated publicly that its development program was hardware rich. After arriving as CEO in late 2017, however, [Bob] Smith appears to have focused more on a substantial reorganization of Blue Origin’s leadership rather than hardware development. Other programs were prioritized, too, so the BE-4 team did not get all the resources and freedom it needed to proceed at full throttle. [emphasis mine]

To put it more bluntly, Smith decided it was more important to rearrange the deck chairs rather than launch lifeboats into the water. As a result, Blue Origin has essentially wasted the last four-plus years.

There are signs that the company has changed course away from Smith’s focus, but we shall have to wait and see. The childish press release issued by Blue Origin yesterday, claiming its manned lunar lander was far better than SpaceX’s Starship and should have been chosen by NASA, suggests that the course change has not been as thorough as one would hope. The amount of intellectual dishonesty contained in that release is somewhat disturbing, especially coming from a rocket company:

Blue Origin appears to be, at minimum, cherry picking its comparisons. The graphic notes that the Starship-Super Heavy system hasn’t launched yet. Starship has launched six miles into the air on several occasions, but not with its Super Heavy booster. It also points out that SpaceX’s Starship facilities in Boca Chica, Texas have never accommodated an orbital launch. Blue Origin, though has never launched any rocket to orbit from anywhere.

The graphic doesn’t, however, note the cost of the Starship lunar lander. SpaceX’s proposal estimates that it will cost NASA $2.9 billion, while Blue Origin’s gave a price of $5.9 billion. [emphasis mine]

For the management of a rocket company to not recognize the fundamental facts indicated by the highlighted words above, or to make believe they are unimportant, does not bode well for that rocket company. Rather than focusing on getting its rocket finally off the ground, the management appears instead unwilling to face some hard facts, and fix them.

Meanwhile, SpaceX keeps barrelling along, focused not on petty managment issues or whiny complaints, but on actually building rockets that fly.

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Zhurong travels another 700 feet on Mars

11:46 am

Zhurong's location

According to a new update from China’s state-run press today, since the last update of its Zhurong Mars rover on July 31st, the rover has traveled just over 700 feet, for a total travel distance of about 2,624 feet, just under a half mile.

As of August 6, 2021, the rover has worked on the surface of Mars for 82 Martian days and the orbiter has been in orbit for 379 days. The two are in good condition and functioning properly.

The report provides no other real information.. I have indicated on the map to the right the range in which this travel distance could have taken Zhurong. Hopefully they will release more information soon.

The nominal mission was originally planned for 90 days. Right now it looks like the rover will easily exceed that.

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SpaceX stacks Starship on top of Superheavy

11:19 am

Superheavy with Starship on top
Click for original image.

Capitalism in space: Only three days after the company had rolled Superheavy prototype #4 to the launchpad, SpaceX today stacked Starship prototype #20 on top, uniting for the first time the entire rocket.

All told, the rocket is 395 feet high, about 32 feet taller than the Saturn-5.

The photo to the right, reduced slightly to post here, was posted by Elon Musk earlier today. It also makes obvious several things that will be different for this Starship flight compared to the previous suborbital hops. Starship’s dark exterior is because it is covered with thermal tiles designed to protect it as it returns to Earth flying through the atmosphere at orbital speeds.

Note also the grid fins on Superheavy. Apparently they will be open during the entire flight, instead of unfurling shortly after stage separation as is done with Falcon 9.

I am not sure what the vertical attachments near the bottom of Superheavy are for. The plan is for the stage to land in the Gulf of Mexico, so it does not need landing legs. Could these be attachment points for holding the rocket to the launchpad?

I have been predicting a late September/early October date for this rocket’s first orbital launch test. SpaceX is sure working hard to beat that timeline. They still need to do tank tests and static fire tests of the whole assembly, but based on past schedules, they might get this done in only a few weeks. If so, it means they might be able to launch before the end of August.

My god, if only other American rocket companies worked in this manner. Imagine what wonders they all could accomplish.

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