Category: Points of Information

Very brief descriptions, with appropriate links, of current or recent news items.

August 28, 2023 Quick space links

3:42 pm

Courtesy of BtB’s stringer Jay.

 

 

 

 

Jay also notes that China’s X feeds “have been quiet for the last two months on the technology fronts. They have been retweeting a lot of their old stories, especially now with Chandrayaan-3 landing, they are showing Yutu-2 pictures and videos,” which suggests to Jay something is impacting China’s pseudo companies. Possibly they are feeling the larger economic crunch that China is presently experiencing.

I also wonder if this is related to the way China’s state-run press purposely avoided mentioning the name of Galactic Energy in reporting its last two successful launches. Have the ChiCons decided its success meant it will soon be time to grab it? If so, this in turn will put a scare into all these pseudo-companies, which would certainly crimp their ability to function enthusiastically.

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Bank of America blacklists Christian nonprofit for what appears to be political reasons

12:38 pm

Bank of America-eager to blacklist

They’re coming for you next: Despite operating two different bank accounts without problems since 2015, Bank of America suddenly shut down the bank accounts of the Christian charitable non-profit Indigenous Advanced Ministries in April 2023, with the bank’s letters announcing the shut down [pdf] exceedingly vague but suggesting that politics played a part.

The initial letters gave no specific reason for the closures, only stating that “upon review of your account(s), we have determined you’re operating in a business type we have chosen not to service at Bank of America.” A later letter said, without explanation, that Indigenous Advance “no longer aligns with the bank’s risk tolerance.” The nonprofit does not advocate for any political causes and has maintained the same mission since it first opened its account with Bank of America.

Officials of the non-profit suspect hostility to its mission was the reason for the cancellations, however, and they have filed a consumer complaint [pdf] against Bank of America with Tennessee’s attorney general, demanding an investigation and noting that the sudden nature of the bank’s action caused a great deal of disruption and the non-profit.
» Read more

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Residue ice in southern mid-latitude Martian crater?

11:16 am

Residue ice in the southern mid-latitudes of Mars?
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on April 10, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows an unnamed 1.2-mile-wide crater at about 35 degrees south latitude with what appears to be residual glacial ice hugging its north interior wall.

As this is in the southern hemisphere, the ground immediately below the south-facing interior wall of the crater is going to be in shadow the most, and thus it will also be the place where any surface or near-surface ice will survive the longest. In this case it appears that from the bumpy nature of that residual ice it has also been sublimating away. Within it however remains the faint hint of multiple layers, suggesting about a dozen past climate cycles with each new cycle producing a new but smaller layer with less ice.

The material in the southern half of the crater floor appears to be dust formed into ripple dunes.
» Read more

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Vikram finds temperatures of lunar soil varies significantly, depending on depth

9:17 am

Temperature range of soil at Vikram landing site

Based on data from one of the instruments on India’s lunar lander Vikram, scientists have found that the temperatures of the lunar soil at the landing site vary significantly, depending on depth. The temperature dropped from 55 degrees Celsuis to -10 degrees Celsuis when going from about 10 millimeters above the surface to about 82 millimeters below the surface, as shown in the graph to the right.

That’s equivalent from going from a summer day in Death Valley of 131 degrees Fahrenheit to a winter day in Minnesota of 14 degrees Fahrenheit, in a distance of only about 3.5 inches. While it was expected that there would a temperature drop, it appears the quick temperature drop just below the surface was faster than expected.

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JAXA scrubs launch of X-Ray telescope & SLIM lunar lander due to high winds

8:57 am

SLIM's landing zone
Click for interactive map.

Because of high winds, Japan’s space agency JAXA yesterday scrubbed the last launch of its H2A rocket, carrying the XRISM X-Ray telescope and the SLIM lunar lander.

A nice description of both payloads can be found here. XRISM is a simplified reflight of the Hitomi X-Ray telescope that failed immediately after launch in 2016.

Though SLIM carries a camera and two secondary payloads, both designed to hop along on the surface and obtain some data, its main mission is engineering, testing whether a robotic spacecraft can achieve a precision landing with a target zone of 100 meters, or 310 feet. The map to the right shows SLIM’s landing site, with the white dot in the close-up inset a rough approximation of that entire target zone. If successful this technology will make it possible to put unmanned planetary probes in places previously thought too dangerous or rough.

All three craft are designed to operate for only about fourteen days, during the daylight hours of the 28-Earth-day-long lunar day.

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Update on ESA’s much delayed Space Rider X-37B copy

10:34 am

Link here. Space Rider is essentially aiming to be another re-usable mini-shuttle like the X-37B and the unnamed classified version from China. While all three are government-owned and government-run, the X-37B and China’s both were built expressly to do military classified missions. There has been no effort in either case to make them available for commercial flights.

The European Space Agency (ESA) however is developing Space Rider instead for commercial customers. It also appears the government-owned and government-run nature of Space Rider is one of the main reasons it will not fly its maiden mission this year, and won’t fly until late 2025, at the earliest.

“As an outcome of the previous ministerial council of 2019, the Space Rider received quite significant financial support to cope with Phase C and D activities. However, the participating states contributed in a way that was not possible — due to the need to comply with the Geo-return mechanism — to keep the industrial consortium as it was operating up to that moment [end-2019],” Galli said.

ESA’s Geo-return mechanism was established to boost fairness among member states, ensuring that the nations that invest in the agency will generate a “fair return.” In a nutshell, participating states in an optional development program should receive industrial contracts in a proportional way with respect to their contribution to that program to ensure that money invested benefits the countries that actually contributed to that program. That is to say for example, if you put 30% of the funds into the program, you are expected to receive as close as possible to industrial contracts accounting for 30% of the overall program.

As the program must abide by the Geo-return mechanism, Galli explained that the initial consortium involved was required to significantly be rebuilt “in compliance with the available funds and their member state relevant origin. … This caused first a not negligible delay in setting up the new industrial consortium… that was finally concluded only in late 2020 with the signature of the new contract with the prime contractors. And then, a so-called bridging design phase was needed on the subsystems affected by the change of industrial supplier, resulting in a longer-than-expected completion of the design phase.

In other words, Space Rider can’t just sell payload space to anyone. Only private businesses in those nations who help finance it can bid, and the customers don’t match well with the ESA’s nations that had been doling up the money. The consequence apparently has been a lot of complex negotiations and jury-rigging to make the two match, all of which has nothing to do with producing a viable product that makes money.

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SpaceX launches another 22 Starlink satellites

6:31 pm

In its second launch from Cape Canaveral in less than 24 hours, SpaceX today placed another 22 Starlink satellites into orbit, using its Falcon 9 rocket.

The first stage completed its third flight, landing successfully on a drone ship in the Atlantic.

The leaders in the 2023 launch race:

59 SpaceX
37 China
12 Russia
7 Rocket Lab

In the national rankings, American private enterprise now leads China in successful launches 68 to 37. It also leads the entire world combined, 68 to 60, while SpaceX by itself now trails the rest of the world (excluding American companies) 59 to 60 in successful launches.

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SpaceX launches four astronauts to ISS

7:20 am

Using its Falcon 9 rocket lifting off from Cape Canaveral, SpaceX early this morning put four astronauts into orbit for a six month mission to ISS.

The Dragon capsule, Endurance, was making its third flight. The first stage, flying for the first time, landed successfully back at Cape Canaveral.

The leaders in the 2023 launch race:

58 SpaceX
37 China
12 Russia
7 Rocket Lab

In the national rankings, American private enterprise now leads China in successful launches 67 to 37. It also leads the entire world combined, 67 to 60, while SpaceX by itself now trails the rest of the world (excluding American companies) 58 to 60 in successful launches.

10 comments

August 25, 2023 Quick space links

2:56 pm

Courtesy of BtB’s stringer Jay.

 

 

2 comments

SpaceX completes successful 6-second static fire test of Superheavy

11:28 am

screen capture during static fire test
Screen capture during static fire test

SpaceX today successfully completed a full 5-second static fire test of all 33 Superheavy Raptor-2 engines as well as the deluge system of the launchpad at Boca Chica.

The link goes to the live stream, which is still on-going. The static fire test occurs at about 42 minutes, if you wish to see it.

According to the narrators of the live stream, Elon Musk tweeted that the static fire was a success. It certainly appeared to go for the full five seconds, and it certainly appeared more robust than the previous test. We will have to wait however for confirmation that all 33 engines fired as planned.

The company clearly appears just about ready to do an orbital test flight. Too bad the Biden administration still stands in the way. There is yet no word on when the FAA will approve a launch license, and the decision of the Justice Department yesterday to file a bogus discrimination lawsuit against SpaceX strongly suggests the White House is working hard to figure out ways to squelch this private effort by an American citizen and his company.

Hat tip to Jay, BtB’s stringer.

32 comments

Flow channels on Mars

11:13 am

Flow channels on Mars
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on May 13, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists call a “channel and depression”, though to my eye everything looks like flow channels, descending to the east.

The drop from the narrow northern channel to wider southern channel is about 200 feet, with the small crater on the left sitting about halfway between. To our Earthbound eyes, something clearly flowed downhill from that northern channel into the wider channel. What we don’t know now is what the material was that did the flowing?

Was it liquid water? Glaciers? The overview map below provides some context, though it doesn’t actually provide an answer.
» Read more

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