Category: Points of Information

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

SpaceX launches 21 more Starlink satellites

8:39 am

SpaceX last evening successfully placed another 21 Starlink satellites into orbit, its Falcon 9 rocket lifting off from Vandenberg in California.

The first stage completed its eighteenth flight, landing on a drone ship in the Pacific.

The leaders in the 2024 launch race:

91 SpaceX
38 China
10 Rocket Lab
10 Russia

American private enterprise now leads the rest of the world combined in successful launches 106 to 58, while SpaceX by itself leads the entire world, including American companies, 91 to 73.

4 comments

September 12, 2024 Quick space links

3:18 pm

Like yesterday, reader Gary has stepped in to cover for BtB’s stringer Jay, who is off on a work trip this week. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

 

  • ArianeSpace CEO Stéphane Israël criticizes billionaires in space

    • But then, Israel has generally been a head-in-the-sand fool for more than a decade when it comes to reusability and commercial space. His insistence ten years ago that it made no financial sense to make Ariane-6 reusable resulted in that rocket being overpriced in today’s market, which is why Europe is right now pushing Arianespace and Stephen Israel out and replacing both with private commercial rocket companies competing for business. All he does here is provide proof that getting him out of the way is the best thing the European Space Agency has done in years.

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Heritage Foundation releases guide to colleges that teach instead of indoctrinate

2:23 pm

Heritage map of good and bad colleges
Click for interactive map.

In an effort to find at least two universities in every state that are focused not on leftist and queer indoctrination but instead on free expression and open inquiry, the conservative Heritage Foundation has now put together an interactive map and guide that parents and high school students can use to choose a quality college to attend.

The image to the right is a screen capture of that map, located here. You can click on each dot to get more detailed information about why Heritage recommends or not recommends it. For example, for Thomas Aquinas College in California the guide says the following in explaining why it lists it as a “great option.”

The mission of Thomas Aquinas College (TAC) is to renew “what is best in the Western intellectual heritage and to [conduct] liberal education under the guiding light of the Catholic faith.” TAC has an impressive “A+” rating from the American Council of Trustees and Alumni. It does not have a bias response team, nor does it require diversity statements for hiring. It has an impressive 80 percent four-year graduation rate. Thomas Aquinas College also accepts the Classical Learning Test for admission.

Meanwhile, the guide says the following in giving Cornell University, Duke, Brown, Harvard, and Tufts a “not recommended” status:
» Read more

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A fluted mesa on Mars

1:27 pm

A fluted mesa on Mars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on July 9, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the science team labels a “silica-rich mound”, as indicated by the bright streaks on all the high ridge points.

The flat-topped mesa on the right drops about 200 feet to the valley floor. The rims of that depression to the west rise about 50+ feet higher, while mesa nose in the upper left rising another 50+ feet more.

Was the depression caused by an impact? If so, the landscape has changed radically since that impact occurred, with most of the surrounding terrain eroded away. The two flat-topped mesas hint at the ancient surface when that impact occurred.

A wider view however raises questions about this impact theory.
» Read more

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Scientists re-create on Earth the sublimation of Mars’s winter mantle of dry ice

11:32 am

Spiders created on Earth
Click for original image.

Scientists have successfully re-created on Earth the process on Mars that creates the unique “spider” formations seen in the the Martian south pole region, produced when the winter mantle of dry ice begins to sublimate away into a gas.

The study confirms several formation processes described by what’s called the Kieffer model: Sunlight heats the soil when it shines through transparent slabs of carbon dioxide ice that built up on the Martian surface each winter. Being darker than the ice above it, the soil absorbs the heat and causes the ice closest to it to turn directly into carbon dioxide gas — without turning to liquid first — in a process called sublimation (the same process that sends clouds of “smoke” billowing up from dry ice). As the gas builds in pressure, the Martian ice cracks, allowing the gas to escape. As it seeps upward, the gas takes with it a stream of dark dust and sand from the soil that lands on the surface of the ice.

At the south pole, the ground below the mantle is stable enough that each winter the trapped CO2 gas follows the same path to the same points where the dry ice cracks, slowly creating “tributaries” that combine to form the spider formations.

The picture to the right, cropped, reduced, and sharpened to post here, comes from figure 9 of the paper [pdf]. It shows the lab-created spiders formed by this simulated process, thereby confirming this hypothesis about how the spiders form.

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Italian rocket company Avio outlines its future rocket plans

11:07 am

Link here. The plans include steady upgrades to its Vega-C rocket, including replacing the upper stage engine presently provided by a Ukrainian company with an engine built by Avio itself.

The bigger development will be a more powerful rocket, the Vega-E, to replace the Vega-C in 2027.

This version of the rocket will retain the first and second stages of the Vega C+ rocket and substitute the third and fourth stages for a single liquid fuel stage powered by the company’s new M10 methalox rocket engine.

The company is also hoping to begin test flights in 2026 of a Grasshopper-type small-scale demonstration rocket leading to the development of a reusable two-stage rocket that would eventually replace Vega-E.

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NASA receives 11 VIPER proposals from the private sector

10:58 am

NASA is now evaluating eleven different proposals from private companies to take over the agency’s canceled VIPER lunar rover.

Equipped with three scientific instruments and a drill, the rover was to be delivered to the Moon by a commercial lander, Griffin, built by Pittsburgh-based Astrobotic as part of NASA’s Commercial Lunar Payload Services (CLPS) initiative. Astrobotic and several other companies have CLPS contracts to deliver NASA science and technology experiments to the Moon. NASA pays for delivery services for its payloads. The companies are expected to find non-NASA customers to close the business case.

NASA is paying Astrobotic $323 million for landing services on top of the cost of VIPER itself. NASA’s commitment to Congress was that VIPER would cost $433.5 million with landing in 2023. By the beginning of this year, that had become $505.4 million with landing in 2024.

It appears NASA canceled the VIPER mission because the agency had doubts Astrobotic would launch Griffin on time. The rover cost overruns, plus additional costs from that launch delay, made NASA management back out.

Though NASA has not revealed any details about the new eleven proposals, we know that Astrobotic’s competitor, Intuitive Machines, is one of those proposals. How it can get it launched to the Moon for less than it would have cost to launch on Astrobotic’s Griffin however is a mystery to me.

Meanwhile, Griffin is still going to launch, with Astrobotic now able to sell that VIPER payload space to others and NASA paying for the flight.

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The UK awards space removal contract to Astroscale/Clearspace partnership

10:49 am

The United Kingdom yesterday awarded a new $3 million contract to a partnership of the Japanese company Astroscale and the Swiss company Clearspace to further develop a mission to de-orbit two satellites in 2026.

The British subsidiaries of Japan-based Astroscale and Switzerland’s ClearSpace announced about 2.35 million British pounds ($3 million) each in funding before tax Sept. 11 to continue de-risking their robotic arm capture system and debris de-tumbling capabilities. The grants enable the ventures to continue working on their technologies until March, when the UK Space Agency is expected to decide which will conduct the demonstration mission.

Both consortiums passed preliminary design reviews for their mission earlier this year.

Both companies are positioning themselves as space junk removal operations, with Astroscale having already flown a partly successful mission to demonstrate rendezvous and capture technologies using its own proprietary magnetic capture system.

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Ispace targeting a December launch for its second attempt to softland on the Moon

10:41 am

Landing zone for Resilience lander

At a press conference yesterday officials of the Japanese company Ispace announced that they are now targeting a December 2024 launch of their second Hakuto-R lunar lander, dubbed “Resilience”, with the landing site located in the high mid-latitudes of the near-side of the Moon.

The map to the right indicates that location, inside Mare Frigoris. Atlas Crater is where Ispace attempted but failed to soft land its first lunar lander, Hakuto-R1, in April 2023.

This new lander will be launched on a Falcon 9 rocket. It carries six commercial payloads. It also appears the company decided to go for an easier landing site on this second mission. Rather than try to land inside a crater, it is targeting a very large and flat mare region, thus reducing the challenges presented to its autonomous software.

Ispace already has contracts both with NASA ($55 million) and Japan’s JAXA space agency ($80 million) for two more future landers, so a successful landing this time is critical to the company’s future.

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FAA attempts to justify its red tape

10:06 am

The FAA today responded to SpaceX’s harsh criticism of the licensing process that is delaying the next test orbital launch of Starship/Superheavy, claiming the delays were entirely SpaceX’s fault for changing the flight profile of the mission, likely involving the landing of Superheavy at the launch tower rather than in the Gulf of Mexico.

The agency also claimed that this change meant that the “environmental impact” would cover a wider area, requiring imput from “other agencies.”

An FAA official reiteriated these claims at a conference yesterday, stating that the delay was “largely set by the choices that the company makes.”

All crap and utter rationalizations. The FAA has decided that any change of any kind in the launch operations will now require major review, including bringing in Fish & Wildlife, the Coast Guard, and others to have their say. This policy however has nothing to do with reality, as there is absolutely no additional threat to the environment by these changes. Nor is there any significant increase in safety risks by having Superheavy land at Boca Chica. Even if there were, the only ones qualified to determine that risk are engineers at SpaceX. The FAA is merely rubberstamping SpaceX’s conclusions, and taking its time doing so.

This is America today. Unless something changes soon, freedom is dead. To do anything new and challenging Americans will have to beg permission from bureaucrats in Washington, who know nothing but love to exert their power over everyone else. Under these circumstances, we shall see the end of a great and free nation.

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SpaceX launches AST SpaceMobile’s first five operational cellphone satellites

9:45 am

SpaceX this morning successfully launched the first five operational satellites in the planned constellation by the company AST SpaceMobile’s for providing cellphone service from orbiting satellites, the Falcon 9 rocket lifting off from Cape Canaveral.

The first stage completed its thirteenth flight, landing back at Cape Canaveral.

AST’s orbital cellphone capability is in direct competition with SpaceX’s own Starlink orbital cellphone service. By launching this competitor SpaceX demonstrates that it is not using its dominance in the launch industry to squelch competition.

The leaders in the 2024 launch race:

90 SpaceX
38 China
10 Rocket Lab
10 Russia

American private enterprise now leads the rest of the world combined in successful launches 105 to 58, while SpaceX by itself leads the entire world, including American companies, 90 to 73.

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Two astronauts on commercial Polaris Dawn manned mission complete spacewalk

9:37 am

Jared Isaacman during his spacewalk
Jared Isaacman during his spacewalk

Jared Isaacman and Sarah Gillis this morning each successfully completed short spacewalks outside their Resilience capsule, exiting about halfway into space but floating free except for a umbilical tether.

It was very evident that the goal of both EVAs was to check out the engineering upgrades created by SpaceX to make this spacewalk possible. Both astronauts worked very carefully to vent the capsule’s atmosphere, open the hatch, exit, then close the hatch, though Isaacman (who exited first) opened the hatch and Gillis closed the hatch. All in all it took a little less then two hours to complete both spacewalks, with Isaacman outside for about ten minutes, and Gillis for a little less.

Though the actual EVAs were relatively unambitious, they were very comparable to the first government spacewalks by America’s Ed White and Russia’s Alexei Leonov in the 1960s. The engineering data that SpaceX obtained from this spacewalk will allow it to refine its spacesuits, its capsule, and make later commercial spacewalks more complex.

This new SpaceX capability is now something the company can market to other future customers. It not only gives this American private enterprise another skill, it makes SpaceX’s commercial capabilities more valuable.

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September 11, 2024 Quick space links

3:28 pm

As BtB’s stringer Jay is on a work trip this week, reader Gary volunteered to send me some links. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

 

 

 

 

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A map of Io’s hot spots based on Juno data

1:12 pm

The hot spots on Io
Click for original image.

The uncertainty of science: Using the JIRAM infrared camera on the Jupiter orbiter Juno, scientists have now created a global map of volcanic activity, showing where it appears the hottest and greatest activity is located.

That data is illustrated by the graphic to the right, taken from figure 1 of the paper. The top row shows the coverage of the planet, with Io’s southern hemisphere getting the fewest observations. The bottom row shows the observed regions with the greatest heat. This quote from the abstract is most revealing:

Using JIRAM, we have mapped where volcanoes are producing the most power and compared that to where we expect higher heat flow from the interior models. Our map doesn’t agree with any of these models very well. JIRAM observed more volcanic activity at the poles than we expected to see based on previous observations. However, since the south pole was only observed twice, it’s possible that these observations don’t represent the average volcanic activity of the south pole. Very bright volcanoes that may have been continuously active for decades were also imaged during these Juno fly-bys, some of which are nearer the poles than the equator.

The conflict between the data and the theories could very well be explained simply by the short term nature of these observations. The models could very well be right, over centuries. For example, the new volcano discovered by Juno is near the equator, suggesting with time those models will turn out to be correct.

Or not. A lot more observations will have to be made of Io before any model of its volcanic activity can be considered trustworthy.

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Juno discovers new volcano on Io

10:24 am

New volcano on Io
Click for original image.

By comparing images taken twenty-seven years apart by the the Jupiter orbiters Galileo and Juno, scientists have discovered that during that time a new volcano appeared on the volcano-strewn Jupiter moon Io.

The two pictures to the right show the surface change on Io during those 27 years.

Analysis of the first close-up images of Io in over 25 years, captured by the JunoCam instrument on NASA’s Juno mission, reveal the emergence of a fresh volcano with multiple lava flows and volcanic deposits covering an area about 180 kilometres by 180 kilometres. The findings have been presented at the Europlanet Science Congress (EPSC) in Berlin this week.

The new volcano is located just south of Io’s equator. Although Io is covered with active volcanoes, images taken during NASA’s Galileo mission in 1997 did not see a volcano is in this particular region – just a featureless surface.

If anything, it has been somewhat surprising how little change the new Juno images have found on Io’s surface, considering its intensely active volcanic geology, with volcano plumes from eruptions captured in images repeatedly. Some volcanoes have shown change, but new features such as this new volcano have not previously been identified.

At the same time, the amount of high resolution imagery of the planet’s surface has been somewhat limited. Galileo sent back far fewer pictures than planned because its main antenna never deployed, and Juno had only a handful of close fly-bys. It will take a mission dedicated to studying Io to better map its violent surface.

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Russia launches three astronauts to ISS

9:45 am

Russia this morning successfully launched a new crew to ISS, its Soyuz-2 rocket lifting off from Baikonur in Kazakhstan.

With this launch there are now nineteen humans in orbit, a new record. This includes the three Chinese astronauts on China’s Tiangong-3 space station, the four astronauts on the private Polaris Dawn mission, the three astronauts on this Soyuz, and the nine astronauts on ISS (four from a Dragon launch, two from the Starliner launch, and three from a previous Soyuz launch).

The Soyuz capsule will dock with ISS this afternoon.

The leaders in the 2024 launch race:

89 SpaceX
38 China
10 Rocket Lab
10 Russia

American private enterprise still leads the rest of the world combined in successful launches 104 to 58, while SpaceX by itself leads the entire world, including American companies, 89 to 73.

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Space industry and Congress blast FAA for its so-called “streamlined” regulations

9:32 am

At hearings yesterday before the House Science committee numerous space companies as well as elected officials heaped numerous complaints about the FAA’s regulartory framework, called Part 450, that it adopted in March 2021 supposedly to “streamline” and “speed up” the licensing required to launch.

The result has been the exact opposite, as predicted by many in the industry when the agency was writing these regulations.

Many in the launch industry have warned since the regulations went into force in March 2021 that it was difficult for companies to obtain licenses under Part 450. Industry officials raised concerns about Part 450 at an October 2023 hearing of the Senate Commerce Committee’s space subcommittee, with one witness, Bill Gerstenmaier of SpaceX, warning the “entire regulatory system is at risk of collapse” because of the difficulties getting licenses under the new regulations.

Witnesses at the House hearing made clear those concerns have not abated. “The way it is being implemented today has caused severe licensing delays, confusion and is jeopardizing our long-held leadership position,” said Dave Cavossa, president of the Commercial Spaceflight Federation, an industry group whose members include several launch companies.

He cited specific concerns such as a long “pre-application” process with the FAA where companies, he said, “get stuck in an endless back-and-forth process” with the agency to determine how they can meet the performance-based requirements of Part 450 with limited guidance. “This process is taking years,” he argued.

It first must be noted that this hearing was not called in connection with the FAA’s stonewalling of SpaceX Starship/Superheavy test program. It was called because since 2021 the entire new rocket industry in the U.S. has ground to a halt, with launches from new rocket companies practically ending because of the red tape imposed on them by Part 450. If something is not done to fix this, new companies in Europe and India will quickly grab market share, choking off profits for the new American companies.

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Polaris Dawn successfully reaches highest orbit for a human since Apollo

9:23 am

The view from 870 miles
The view from 870 miles. Click for video.

Polaris Dawn yesterday successfully climbed to an altitude of 870 miles yesterday, the farthest any human has been from Earth since the Apollo missions to the Moon, and the highest Earth orbit since Gemini 11 flew an apogee of 853 miles in 1966.

The four members of the Polaris Dawn mission, riding aboard SpaceX’s Dragon spacecraft “Resilience,” climbed into an elliptical orbit with a high point, or apogee, of 870 miles (1,400 kilometers) on Tuesday (Sep. 10). They reached the record distance about 15 hours after lifting off at 5:23 a.m. EDT (0923 GMT) from Florida earlier in the day and circling the planet about eight times in an initial orbit of 118 by 746 miles (190 by 1,200 km).

They maintained this high orbit for about ten hours in order to gather radiation data for future exploration, and then dropped down to a lower orbit where the planned spacewalk will occur on September 12th.

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Engineers successfully switch thrusters on Voyager-1

9:14 am

The Voyager missions
The routes the Voyager spacecraft have
taken since launch.

Because of an increasing number of clogged thrusters on the almost half-century old Voyager-1 spacecraft, now flying just beyond the heliosphere of the solar system, engineers needed to switch thrusters recently, and successfully did so in a complex dance of engineering.

They had to switch from one thruster, in which a fuel line has become increasingly clogged in the last few years due to age, to an another thruster in a different system. The switch however required other careful preparations, since Voyager-1’s nuclear power supply has dropped to a point where they have been forced to shut down almost all operations. Thus, the thrusters are not getting heated as they once were, and turning on the replacement thruster in this condition could damage it.
» Read more

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The reasons why Mars two polar caps are so different

1:06 pm

The Martian north pole
The Martian north pole.

The Martian south pole
The Martian south pole.

Elevation scale bar
What the colors mean in terms of elevation

A new paper, in review for the past year, has now been published describing the differences between the north and south poles of Mars, the most fundamental of which involve the planet’s orbit and the different elevations of the two poles, with the south pole three to six miles higher in altitude (as indicated by the colors on the maps to the right).

The cumulative data has allowed the researchers to explain why — when the thin winter cap of dry ice sublimates away in the spring — the process at the south pole results in spiderlike features that get enhanced from year to year, but in the north pole that sublimation process produces no such permanent features.

In both cases, the spring sunlight passes through the clear winter mantle of dry ice to heat its base. The sublimated trapped CO2 gas builds up, until the pressure causes the mantle to crack at weak spots. In the south that trapped gas flows uphill each spring along the same paths, carving the riverlike tributaries dubbed unofficially as “spiders” and officially as “araneiform terrain.”

Geophysicist Hugh Kieffer described that process in 2006. A few years later, [Candice] Hansen [the new paper’s lead author] followed up with her own model for the north polar cap, which also displays fans in the spring.

She found that the same phenomena occur in the north, but rather than relatively flat terrain, these processes play out across sand dunes. “When the Sun comes up and begins to sublimate the bottom of the ice layer, there are three weak spots – one at the crest of the dune, one at the bottom of the dune where it meets the surface and then the ice itself can crack along the slope,” Hansen said. “No araneiform terrain has been detected in the north because although shallow furrows develop, the wind smooths the sand on the dunes.”

There is also a lot more dust in the north, including a giant sea of dunes that circles the polar cap. In addition, the northern winter is shorter due to the planet’s orbit, and takes place during the annual dust storm season, causing there to be more dust concentrated within the northern ice. All of these factors make the the dunes and general surface in the north is more easily smoothed by the wind.

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A cloud atlas of Mars

10:58 am

Different clouds on Mars interacting
Click for original image.

Using data obtained from one of the instruments on the European Space Agency’s (ESA) Mars Express orbiter, scientists have now published an atlas of the clouds of Mars and made it available to the public.

The picture to the right, cropped, reduced, and sharpened to post here, is just one example of the images in the atlas. From the caption:

This image displays two atmospheric phenomena: the white curved lines are gravity wave clouds, while the brown areas are dust lifted from the ground by wind. The colour shift visible in the dust lifting event might be indicative of very fast winds, a phenomenon currently under investigation by other members of the team.

The atlas contains more than 300 images of various Martian cloud formations, from the one to the right to images of cirrus clouds on the top of Olympus Mons, Mars’ largest volcano. You can download it here (the file is a very large spreadsheet).

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FAA delays launch license approval of next Starship/Superheavy test launch until late November

9:51 am


The White House to SpaceX: “Great business you got there! Really be
a shame if something happened to it!”

According to an update today on SpaceX’s Starship webpage, the FAA has told the company to not expect a launch license for its next Starship/Superheavy orbital test launch until late November.

We recently received a launch license date estimate of late November from the FAA, the government agency responsible for licensing Starship flight tests. This is a more than two-month delay to the previously communicated date of mid-September. This delay was not based on a new safety concern, but instead driven by superfluous environmental analysis. The four open environmental issues are illustrative of the difficulties launch companies face in the current regulatory environment for launch and reentry licensing.

This two month delay is actually a four month delay, since SpaceX had previously stated it was ready to launch in early August. » Read more

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CEO of the German rocket statup Isar Aerospace pulls a Musk

9:27 am

Proposed spaceports surrounding Norwegian Sea
Proposed spaceports surrounding Norwegian Sea

During an interview at a conference this week, Daniel Metzler, the CEO of the German rocket statup Isar Aerospace, imitated the kind of comments issued routinely by Elon Musk prior to one of SpaceX’s daring test launches, stating that the first launch of Isar’s Spectrum rocket will be a success “if we don’t blow up the launch site.”

“For me, the first flight will be a success if we don’t blow up the launch site,” explained Metzler. “That would probably be the thing that would set us back the most in terms of technology and time.” He went on to explain that the company’s “test early and improve iteratively” development approach was inherently risky.

Though no launch date has been set, there are indications based on the activity at the Andoya spaceport in Norway, where Isar has a 20-year lease on the only launchpad, that this launch could occur within the next month or so. Andoya received its spaceport license late last month, and it also appears that Norway’s bureaucracy is not acting to delay this activity, as has the Civil Aviation Authority in the United Kingdom.

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In approving Europa Clipper’s launch, NASA and JPL claim its non-spec transistors will “heal” themselves in Jupiter orbit

9:12 am

Europa in true color
Europa in true color, taken by Juno September 2022.
Click for full image.

In making the decision to allow Europa Clipper to be launched on a Falcon Heavy on October 10, 2024, NASA and JPL officials explained that after several months of testing, they believe the improperly hardened transistors installed throughout the orbiter will “heal” themselves while in the low radiation portions of its orbit around Jupiter.

[The testing] showed the transistors in question will, in effect, heal themselves during the 20 days between the high radiation doses the probe will receive during each of 49 close flybys of Europa, all of them deep in Jupiter’s powerful magnetic field and radiation environment.

In addition, onboard heaters can be used as needed to raise the temperature of affected transistors, improving the recovery process. “After extensive testing and analysis of the transistors, the Europa Clipper project and I personally have high confidence we can complete the original mission for exploring Europa as planned,” said Jordan Evans, Europa Clipper project manager at NASA’s Jet Propulsion Laboratory.

I hope this analysis is right, though I fear there is a lot of wishful-thinking involved. It could be however that this testing, in combination with what engineers have learned during Juno’s so-far 64 orbits around Jupiter, might have reassured them.

We however will not know for sure until Europa Clipper is on its way and reaches Jupiter in 2030.

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Hurricane damages China’s new launch facilities at its coastal Wenchang spaceport

8:58 am

China's spaceports

When Typhoon Yagi (what hurricanes are called in the Asian Pacific) made landfall on September 6, 2024, carrying winds as high as 150 miles per hour, it not only caused flooding and power outages, it apparently did significant damage to China’s new launch facilities at its coastal Wenchang spaceport.

The site has two launch towers, one dedicated to servicing the state’s Long March 8 rockets, while the other services both public and private rockets, including a Long March 12 that was due to make its debut launch later this year.

On Saturday, the city’s deputy mayor, Wei Bo, said the typhoon had posed a “serious threat” to facilities and equipment at the commercial space hub but emergency restoration work was being carried out.

As is usual with China’s state-run press, few details were released, including the actual damages, both to the launch facilities and to the nearby cities.

China has been using this spaceport increasingly to support its space station as well as launch planetary probes. It has also developed a commercial launchsite there for its pseudo-private companies to use. How this damage will impact future launches remains unknown.

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Jared Isaacman’s private spacewalk manned mission launches on Falcon 9

8:39 am

Early this morning SpaceX successfully launched its Resilience Dragon capsule carrying four passengers on Jared Isaacman’s mission to do the first entirely private spacewalk. The Falcon 9 rocket lifted off from the Kennedy Space Center in Florida.

Resilience is flying its third flight. The first stage completed its fourth flight, landing on a drone ship in the Atlantic.

The spacewalk will take place on September 12, 2024. In between the crew will spend the next two days preparing for that, while flying in an orbit with a apogee of 870 miles, the highest any person has flown from Earth since Apollo. That orbit will be lowered slightly for the spacewalk itself.

The leaders in the 2024 launch race:

89 SpaceX
38 China
10 Rocket Lab
9 Russia

American private enterprise now leads the rest of the world combined in successful launches 104 to 57, while SpaceX by itself leads the entire world, including American companies, 89 to 72.

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Watch the launch of private manned Polaris Dawn

9:47 pm

The real rocket behind tonight's launch
The real rocket behind tonight’s launch

SpaceX tonight will attempt the launch of the private manned Polaris Dawn mission, led and paid for by billionaire Jared Isaacman and carrying three other crew member (including two SpaceX employees).

I have embedded the live stream below, which has already begun. The launch is presently scheduled for 3:38 am (Eastern), with a four hour launch window.

The mission is planned as a five day mission, during which two astronauts will do a tethered spacewalk, though the entire crew will be in EVA spacesuits. This will be the first entirely private spacewalk, involving no government involvment at all. The mission will also attempt reach the highest orbit since the Apollo days, more than 870 miles.

As I wrote the day of the mission’s first launch attempt:

The mission’s real goal however has nothing to do with engineering and everything to do with freedom and the American dream. This is an entirely private mission. The rocket is privately built. The capsule is privately built. The launchpad is privately built. The launch crew is privately employed. The astronauts are all private citizens, with one paying the way for the entire flight and two flying as employees of SpaceX to test the operation of its capsule in orbit.

No government money is involved. The government had little or no say on what will happen. The mission will illustrate in very stark terms what the American dream is all about, since it has been conceived, paid for, and created entirely by private citizens following their own dreams and goals.

Hail to freedom! May the bell of liberty always ring.

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A crack on Mars more than 600 miles long

2:18 pm

A crack on Mars more than 600 miles long
Click for original image.

Cool image time! The picture to the right, cropped and reduced to post here, was taken on March 29, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The science team labels this “troughs in Labeatis Fossae.” On Mars, the word “fossae” is used to indicate regions where there are a lot of parallel fissures. Though there are a few examples where such fissures might have been caused by the movement of ice or water, carving out the channel, in almost all cases this is not the cause. Instead, fossae are usually formed when the surface stretches, either because underground upward pressure pulls it apart, or because there is a sideways spread at the surface. The resulting cracks are generally considered what geologists call “grabens,” depressions caused at faultlines when the ground on either side moves apart in some manner.

In this case the break in the trough proves this is a graben, though why it broke at this spot is not clear.
» Read more

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Musk: First unmanned Mars Starship targeting a ’26 launch

9:15 pm

The prime and secondary Martian landing sites for Starship

According to a tweet yesterday by Elon Musk, SpaceX is aiming for a 2026 launch of its first unmanned Starship to Mars.

The first Starships to Mars will launch in 2 years when the next Earth-Mars transfer window opens. These will be uncrewed to test the reliability of landing intact on Mars. If those landings go well, then the first crewed flights to Mars will be in 4 years.

Flight rate will grow exponentially from there, with the goal of building a self-sustaining city in about 20 years.

The graphic to the right indicates the planned landing zone, with the four red dots the four prime locations. Three of the four are very flat, though they also appear to have a lot of very near-surface ice, accessible simply by digging a shovel into the ground. Attempting to land at any will definitely test Statship’s ability to land on Mars intact. A global map of Mars is shown below, showing the location of this landing zone. The map shows where researchers believe the saltiest water on Mars would be. According to this data, in the Starship landing zone some of that near-surface ice will turn to liquid brine a little less than one percent of each year. Otherwise it will be more easily processed for drinking and fuel.

As always with these ambitious predictions, Musk is aiming high, with the likelihood that this first mission will not make that ’26 date. At the same time, he is making it very clear that a first attempt will certainly happen by ’28.

I also think the timing of this announcement is intriguing, coming one day after NASA was forced to cancel the launch in October of two Mars orbiters because it could not be certain Blue Origin would have the New Glenn rocket ready on time. Musk’s response is to say that SpaceX is now about to begin regularly privately funded and privately built missions to Mars, on a schedule, essentially asking: “Which company would you choose to do things in space?”
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