Year: 2022

Astroscale demo to test space junk removal struggles with failed thrusters

9:35 am

Capitalism in space: Astroscale demo mission, ELSA-d, has been unable to complete a docking with its target vehicle as planned because four of the eight thrusters on the capture “servicer” vehicle have failed.

Engineers had separated the servicer from the target in January so that it could perform a rendezvous and then docking, from a distance, but that test was halted when engineers detected what the company only labeled as “anomalous spacecraft conditions.” This new announcement reveals what that problem was.

With safety always paramount, the Astroscale team has used a complex mix of burns with the remaining thrusters, aerodynamic drag and the natural perturbations of Earth’s gravity to bring the servicer safely back to a distance where operations can continue.

This revised plan began on February 18th, and has now apparently been mostly completed. However, rather than dock, the company has decided to only approach as close to 160 meters (525 feet) to test some sensors, and then retreat. Whether they will then attempt a recapture remains undecided.

Astroscale’s goal is to convince satellite companies to install its magnetic capture device on their satellites. Astroscale’s servicer could then use it to dock with a defunct satellite and deorbit it or maybe fix it. This demo flight was to prove the rendezvous and capture device worked.

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NASA will not load fuels in SLS upper stage in next dress rehearsal countdown attempt

12:29 am

In the next attempt to complete the first “wet dress rehearsal” of NASA’s SLS rocket tomorrow, April 11th, the dress rehearsal will not be as wet as originally planned.

NASA said April 7 that engineers found a problem maintain helium purge pressure in the ICPS [SLS’s upper stage] after changing out a regulator in the mobile launch platform. At that time, the agency said it was able to restore normal pressure but was still studying the source of the problem, now linked to the faulty valve in the ICPS itself.

Because that issue, NASA now plans to limit the amount of liquid oxygen and liquid hydrogen propellant loaded into the ICPS during the WDR. NASA said the countdown rehearsal will be modified with “minimal propellant operations” on the ICPS, but didn’t elaborate on how much propellant would be transferred into the upper stage.

As usual, NASA officials are now making believe that they will achieve all their goals for the dress rehearsal if they complete it without completely fueling the upper stage. This is intellectually dishonest. This dress rehearsal was intended to test all aspects of the rocket’s launch countdown, including the fueling of all its stages. If they complete it without successfully fueling the upper stage, they will not achieve all their goals. Period.

The plan right now is to attempt this revised launch rehearsal tomorrow, then return the rocket to the vehicle assembly building where engineers will replace the faulty valve. At that point it is unclear what the agency will do next.

Though this incomplete test will have taught them a lot, if they do not redo the dress rehearsal with full loading of all stages but instead proceed to a launch attempt in the present target window from June 6 to June 16, they will be doing so with a greater risk. Of course, if the new valve works during that launch attempt, then all should be well. In fact, this risk appears quite reasonable.

Nonetheless, the fundamental problem remains: NASA is under pressure to launch, and held off this kind of testing until very late in the program. Finding these problems now puts serious limits on the ability of the agency to fix them. This in turn puts serious limits on the reliability of SLS.

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Splonk went the crater!

12:59 pm

Splonk went the crater!
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on February 18, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists label as a “degraded crater in Utopia Planitia.”

There is a lot of intriguing geology in this one image. First of course is the crater itself. We have to ask, is it from an impact or from some volcanic process? The location, at 44 degrees north latitude, argues that some form of ice or mud process was involved. Maybe we are looking at a frozen eruption from an underground ice layer. If this was instead caused by an impact, the crater’s ringlike structure could have been created by the ripples of melted ice and mud emanating away but then quickly refreezing.

Surrounding the crater are many small fissures, the largest ones all oriented in a north-south direction. If there is an ice layer near the surface, these cracks might be caused by that ice sublimating away. Why the largest cracks orient in the same direction however is a mystery.

The color variations suggest [pdf] dust (red-orange) as well as a variety of minerals (green). Since no blue appears visible in this version of the photo, if this crater was shaped by melting or erupting ice, that ice is well covered by that layer of dust and debris.

The location map below as always provides context.
» Read more

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Pushback: NJ gym-owners who refused to obey COVID edicts regain business license

11:30 am

Bill of Rights, canceled in New Jersey these past two years
The Bill of Rights, canceled in New Jersey
these past two years.

A profile in courage: The owners of a New Jersey gym, Atilis Gym, who refused to comply with any of the absurd Wuhan flu restrictions imposed by Democratic Party Governor Phil Murphy and his health department have had their business license restored after two years, during which they managed to keep the gym functioning by asking for donations by those who used it.

[Ian] Smith claimed that as a result of not complying with lockdown orders, he and [Frank] Trumbetti received more than 90 citations, along with ten gym members who received citations; 9 criminal charges; that both he and Trumbetti were arrested, as well as one member; that local police changed the locks on the building, backed up their plumbing, and eventually boarded up the gym; that they were fined $15,497.76 every day they remained open, for 5 months; that $173,000 in fundraising for their legal defense was seized by the state; and that they owe more than $300,000 in legal bills. “And they took our business license,” Smith wrote. “Our ability to pursue the American dream. All for what? We were right all along. To date, 391,683 visits to our facility and people got healthier, happier, and better.”

“Well, it paid off,” Smith continued. “The township folded. They reinstated our business license. It took them 2 years to realize that nothing would make us kneel. … We made it. 2 years without charging a single member – just donations and [T-Shirt] sales. All the legal bills, fines, normal overhead, and safety equipment. We were able to do it because of you all. Thank you all again.”

Expect these owners to follow up with lawsuits to recover damages for the state’s illegal acts to try to destroy them.

Their resistance to tyranny was very painful for these brave men, but their courage cannot be applauded enough. They did what more Americans should have done, and did not. They stood up to the idiotic health orders of the state, that were based on no science at all and were completely useless:
» Read more

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New data contradicts accepted standard model of particle physics

9:35 am

The uncertainty of science: After years of analysis, physicists have refined their measurement of the mass of one important subatomic particle, and discovered that its weight violates the accepted standard model of particle physics, threatening to overthrow it entirely.

W bosons are elementary particles that carry the weak force, mediating nuclear processes like those at work in the Sun. According to the Standard Model, their mass is linked to the masses of the Higgs boson and a subatomic particle called the top quark. In a new study, almost 400 scientists on the Collider Detector at Fermilab (CDF) collaboration spent a decade examining 4.2 million W boson candidates collected from 26 years of data at the Tevatron collider. From this treasure trove, the team was able to calculate the mass of the W boson to within 0.01 percent, making it twice as precise as the previous best measurement.

By their calculations, the W boson has a mass of 80,433.5 Mega-electronvolts (MeV), with an uncertainty of just 9.4 MeV either side. That’s within the range of some previous measurements, but well outside that predicted by the Standard Model, which puts it at 80,357 MeV, give or take 6 MeV. That means the new value is off by a whopping seven standard deviations.

Further cementing the anomaly, the W boson mass was also recently measured using data from the Large Hadron Collider, in a paper published in January. That team came to a value of 80,354 MeV (+/- 32 MeV), which is comfortably close to that given by the Standard Model.

Personally, I always take this level of physics with a great deal of skepticism. The data involves a lot of assumptions and uncertainties. That other researchers came up with a different number illustrates this.

Nonetheless, these results could suggest that the standard model, the consensus theory for decades, is either incomplete, or wrong. The former would be more likely, but no possibility should be dismissed. And even if wrong, much of that model still works so well any new model must include large parts of it.

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French company raises €2 million to launch commercial solar sail

9:23 am

Capitalism in space: The French startup Gama has successfully raised €2 million to build and launch its first test solar sail, with the goal of eventually selling those sails for other interplanetary missions.

Gama plans to deploy a 73.3-sq-metre solar sail in a 550km-altitude orbit in October. It will be launched as an additional payload on a SpaceX rocket.

There have been a number of previous solar sail deployment tests by Nasa and the American space advocacy group the Planetary Society. However, the Japan Aerospace Exploration Agency had been the only organisation to successfully sail on sunlight. In 2010 it used a solar sail to power the experimental Ikaros (Interplanetary Kite-craft Accelerated by Radiation of the Sun) spacecraft to Venus.

If successful the company will follow with two more test missions in ’24 and ’25, first testing at higher orbit and testing in interplanetary space.

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Starlink delivers 5,000 terminals to Ukraine; loses license in France

9:03 am

Capitalism in space: Starlink today continued its aggressive support for the Ukraine in its war with Russia by delivering another 5,000 terminals to that beleaguered country.

Space reporter Joey Roulette tweeted Wednesday that the majority of the terminals — 3,667, to be exact — as well as the associated internet service were donated directly by SpaceX at a cost of “roughly $10 million,” with USAID purchasing the remaining 1,333 terminals. These numbers apparently came from an earlier version of the USAID release; the updated release doesn’t give dollar figures and refers only to 5,000 Starlink terminals donated by a public-private partnership.

Roulette also suggested in another tweet that France and Poland had made contributions to the Starlink shipments to Ukraine, citing an earlier conversation with SpaceX president and chief operating officer Gwynne Shotwell. The USAID announcement only refers to the American partnership, however.

In a second story today, however, Starlink lost its ability to provide service in France, when a court ruled its license had been issued improperly.

France’s Conseil d’État ruled April 5 that French telecoms regulator ARCEP should have launched a public consultation before authorizing Starlink in February 2021.

“In law, they should normally cease [providing services] immediately, pending ARCEP’s public consultation” following the court’s decision, a Conseil d’État spokesperson told SpaceNews.

The court case was apparently instigated by two French environmental groups, who are demanding more regulations against the large satellite constellations.

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Relativity still targeting a ’22 first launch

8:56 am

Capitalism in space: The startup rocket company Relativity is still targeting this year for the first test launch of its 3D-printed Terran-1 rocket, according to its CEO Tim Ellis.

The company has raised more than $1 billion in private investment capital.

If successful, Relativity will join Rocket Lab, Virgin Orbit, and Astra as a small satellite launch provider, all capable of launching military and commercial smallsats quickly. The competition will guarantee that their prices will be low as well.

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SpaceX successfully launches Axiom’s first commercial flight to ISS

8:19 am

Capitalism in space: SpaceX today successfully launched the first commercial mission to ISS by the private company Axiom, carrying three passengers and one Axiom astronaut as commander.

The replay of the live stream of the launch is embedded below.

The first stage, which landed successfully on the drone ship in the Atlantic, completed its fifth flight. The capsule Endeavour was making its third flight. This is also the second private manned mission launched by SpaceX.

Docking with ISS is scheduled for early tomorrow morning.

All in all, it was a perfect launch, on time and as planned. This has become so routine for SpaceX that we tend to take it for granted. We shouldn’t. Launching people into space remains one of the hardest things humans do, and will likely always be so.

The leaders in the 2022 launch race:

13 SpaceX
9 China
5 Russia
2 ULA
2 Rocket Lab

The U.S. now leads China 20 to 9 in the national rankings.
» Read more

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