Tag: engineering

SpaceX launches two astronauts to ISS, setting new annual launch record for the U.S.

11:17 am

SpaceX this morning launched two astronauts to ISS in the fourth flight of the Freedom Dragon capsule, the Falcon 9 rocket lifting off from Cape Canaveral.

The first stage completed its second flight, landing back at Cape Canaveral. Freedom will dock with ISS tomorrow.

While most news stories will focus on the rescue aspect of this mission, its crew reduced by two so that the two astronauts launched in June on Boeing’s Starliner capsule can come home on it in February, the real news story is that with this launch the United States set a new record for the number of launches in a single year. With this launch the U.S. has completed 111 successful launches in 2024, exceeding the record set last year’s of 110 launches. And this record was achieved in less than three quarters of the year. At this rate is it very likely the U.S. will double the record of 70 set in 1966 that lasted until 2022.

China meanwhile completed its own launch late yesterday, its Long March 2D rocket placing what China’s state-run press described as “its first reusable and returnable test satellite,” designed to do orbital operations and experiments, return to Earth with those materials, and then later relaunch again. This is very similar to the commercial capsules that the startup Varda is flying and using to produce pharmaceuticals for sale.

The rocket lifted off from China’s Jiquan spaceport in northwest China. No word where its lower stages, using toxic hypergolic fuels, crashed inside China.

The leaders in the 2024 launch race:

95 SpaceX
44 China
11 Russia
11 Rocket Lab

American private enterprise now leads the rest of the world combined in successful launches 111 to 67, while SpaceX by itself now leads the entire world, including American companies, 95 to 83.

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Crazy swirling Martian landscape

1:48 pm

Crazy swirling Martian landscape
Click for original image.

Cool image time! The picture to the right, cropped, reduced, sharpened, and annotated to post here, was taken on July 1, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The science team labels this “Contacts between Likely Sulfates and Chaos Blocks.” That contact I have indicated with the dotted line. To the west the lighter terrain is likely the sulfate-bearing unit, similar to the sulfate-bearing unit that Curiosity has been traversing on Mount Sharp for the past year or so.

To the east are the chaos blocks, but I think that description is wholly inadequate. In truth, I haven’t the faintest idea how this terrain got to be the way it is. It is evident that a lot of dust and sand has gotten trapped in the hollows, leaving behind ripple dunes in some places, but why the higher ridges swirl and curve about as they do is utterly baffling.
» Read more

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Scientists locate lunar impact crater produced by LCROSS in 2009

11:07 am

Figure 2 of research paper
Taken from figure 2 of the paper. Click for
original image.

Using orbital radar and opitcal images scientists finally believe they have identified the small crater on the Moon produced when — as part of the 2009 LCROSS mission — an abandoned rocket stage crashed in a permanently shadowed section of Cabeus crater near the lunar south pole.

LCROSS was designed to study the ejecta thrown up by that impact, and found “a significant amount of water, estimated at 5.6 ± 2.9% by mass, as well as minor amounts of other volatile species.” Because the impact was in that permanently shadowed region, however, locating the new crater required new instrumentation.

Using a radar instrument on Lunar Reconnaissance Orbiter (LRO) as well as the Shadowcam instrument on South Korea’s Danuri orbiter — designed to take optical images in very low light — the scientists pinpointed that impact crater, as shown in the image to the right, overlaying both the radar and optical images. The crater is estimated to be about 22 meters across, about 25% smaller than predicted. From this the scientists conclude that the water in the ejecta plume came from close to the surface, and thus could only have been placed there in the past billion years. Before that, the location was not in shadow, and volatiles like water could not have survived if they were near the surface.

From this data the scientists believe the water was likely placed there by the “recent delivery by comets or the solar wind, rather than as a paleo-reservoir from an early volcanic atmosphere.” If so, the amount of material can be reasonably predicted, and is likely less than hoped for because it only exists in the top two meters.

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Rocket Lab completes new capsule for Varda

9:10 am

Varda's space capsule, on the ground in Utah
Varda’s first capsule on the ground in Utah.

Rocket Lab today announced it has completed testing and intergration of a new recoverable capsule for the in-space manufacturing company Varda, to be used in orbit to produce pharmaceuticals that can only be created in weightlessness.

No launch date was announced. This was the second of four capsules Rocket Lab is building for Varda, with the first having already completed its flight, where it returned to Earth after successfully crystallizng the HIV drug Ritonavir.

The most important tidbit in the press release however was this:

Varda received permission from the FAA under a Part 450 license earlier this month, making them the only company to ever secure a second reentry license.

With the first capsule, the capsule’s return was delayed almost six months because the FAA and the military couldn’t get their paperwork together to approve the return license. Varda now has that return license in hand before launch, meaning it will get the capsule back when it wants.

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Starlink now has four million subscribers

9:00 am

According to SpaceX’s CEO, Gwynne Shotwell, during testimony in a hearing before the Texas state legislative committee and confirmed by a SpaceX tweet on X, Starlink now has a total of four million subscribers.

The milestone would mean that SpaceX has gained a million new customers since the end of May alone. This outpaces the company’s already impressive rate of growth: Starlink started providing beta service of its product in October 2020; it hit 1 million subscribers in December 2022, 2 million subscribers in September 2023, and 3 million in May. The constellation now comprises nearly 6,000 satellites, with service available in nearly 100 countries to individual users as well as large enterprise customers like major airlines and cruise lines.

The service is on track to generate $6.6 billion in revenue this year — an increase from roughly $1.4 billion just two years prior, according to industry research and consulting firm Quilty Space. [emphasis mine]

With $6.6 billion in yearly revenue, in two years SpaceX will get as much from its customers as it has raised in investment capital. It essentially does not need to look for more funding, as it is now earning enough to pay for both Starlink as well as the development of Starship/Superheavy. Furthermore, at this point the company no longer needs NASA’s government funds to do anything it wants to do.

Nor are these numbers the end. Yesterday it was also reported that Air France had signed up Starlink for its airplane fleet, coming after both United and Hawaiian airlines announced they were switching to Starlink as well.

No wonder the left as well as the federal bureaucracy — dominated by top-down authoritarians who love governemnt rule — are hostile to SpaceX. It no longer needs them, and that independence threatens their power.

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Orbital tug startup D-Orbit raises another 150 million euros

8:44 am

The orbital tug company D-Orbit announced today that it was able to extend its more recent round of fund-raising by 50 million euros, and raise a total of 150 million in private investment capital instead.

Japan’s Marubeni Corp. led the Series C round. Marubeni has exclusive rights to distribute D-Orbit’s services in Japan in Southeast Asia, according to the news release.

New and existing investors participating in the round include: Avantgarde, CDP Venture Capital, Iberis Capital, Indaco Venture Partners, the European Innovation Council, Neva, Phaistos Investment Fund, Primo Ventures and Seraphim Space Investment Trust. Also joining the round was a consortium led by United Ventures that included the European Investment Bank and the European Investment Fund.

I call the company a “startup” in the headline, but that probably is now incorrect. It already has flown fourteen orbital tug missions, with seven more scheduled in 2025. At this point it is well established, and could extend this most recent funding round.

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Musk and Shotwell once again blast red tape against the company

12:54 pm

The EPA to SpaceX
The EPA to SpaceX “Nice company you got here.
Sure would be a shame if something happened to it.”

In a follow-up to SpaceX’s blunt critical response to the attacks against it by the head of the FAA, Mike Whitaker during House testimony on September 24, 2024, Elon Musk in a tweet yesterday called for Whitaker to resign.

That blast however was only the start. During a different hearing on September 24th before the Texas state house appropriations committee, Gywnne Shotwell, the CEO of SpaceX, called the actions of the EPA to regulate the launch deluge system for Starship/Superheavy “nonsense.”

“We work very closely with organizations such as the (Texas Commission on Environmental Quality),” she said. “You may have read a little bit of nonsense in the papers recently about that, but we’re working quite well with them.”

…On Tuesday, Shotwell maintained that the the system — which she said resembles “an upside down shower head” — was “licensed and permitted by TCEQ [Texas Commission on Environmental Quality] … EPA came in afterwards and didn’t like the license or the permit that we had for that and wanted to turn it into a federal permit, which we are working on right now.”

…The state agency has said the company received a stormwater permit — a type that’s usually quickly approved — but did not have the permit required for discharge of industrial wastewater produced by launches. That type of permit requires significant technical review and usually takes almost a year to approve. [emphasis mine]

The problem with this demand by both EPA and TCEQ is that SpaceX is not dumping “industrial wastewater produced by launches.” The deluge system uses potable water, essentially equivalent to rain water, and thus does zero harm to the environment. In fact, a single rainstorm would dump far more water on the tidal islands of Boca Chica that any of SpaceX’s Starship/Superheavy launches.

Thus, this demand by the EPA clearly proves the political nature of this regulatory harassment. The unelected apparatchiks in the federal bureaucracy are hunting for ways to stymie and shut down SpaceX, and they will use any regulation they can find to do so — even if that use makes no sense. And they are doing this because they support the Democratic Party wholesale, and thus are abusing their power to hurt someone (Elon Musk) who now opposes that party.

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The jet 3,000 light years long that causes nearby stars to explode

10:48 am

The jet from M87
Click for original image.

Cool image time! The picture to the left, cropped, reduced, and sharpened to post here, was taken by the Hubble Space Telescope of the giant eliptical galaxy M87, known for more than a century by astronomers for the jet of gas that points outward from its center. Astronomers now know that this jet is produced by a supermassive black hole in the center of M87, weighing 6.5 billion times the mass of our Sun.

The blowtorch-like jet seems to cause stars to erupt along its trajectory. These novae are not caught inside the jet, but are apparently in a dangerous neighbourhood nearby. During a recent 9-month survey, astronomers using Hubble found twice as many of these novae going off near the jet as elsewhere in the galaxy. The galaxy is the home of several trillion stars and thousands of star-like globular star clusters.

M87 is considered an old galaxy, but its entire formation process remains uncertain.

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Lockheed Martin drops out of commercial manned lunar rover consortium

9:29 am

Lunar Outpost, one of the three companies/partnerships that have won NASA contracts to develop manned lunar rovers for the Artemis program, has replaced Lockheed Martin as one of its partners.

This fact was only made evident now, three months after Lockheed parted ways, with a statement that a new much smaller company, Leidos, has joined the consortium.

That statement listed the other members of the Lunar Dawn team: General Motors, Goodyear and MDA Space. Notably absent was Lockheed Martin, which Lunar Outpost had described as its “principal partner” on the rover when it won the NASA contract in April. The website for Lunar Dawn also did not list Lockheed Martin as a partner.

In a Sept. 25 interview, Justin Cyrus, chief executive of Lunar Outpost, confirmed that Lockheed Martin was no longer involved in the rover project. “We just weren’t able to reach an agreement as we were negotiating the terms and conditions of the statement of work for this contract,” he said.

Both Lunar Outpost and Lockheed Martin provided no specific reasons for the break-up, other than typical PR statements such as “it wasn’t a good fit for us or them.”

The rover being built is dubbed Lunar Dawn. The present NASA contract only covers the design phase. Once completed NASA will choose one consortium to build the rover itself, picking from either the Lunar Outpost design or the designs submitted by Intuitive Machines and Venturi Astrolab.

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Monitoring gullies on Mars for changes

12:25 pm

Overview map

Monitoring gullies on Mars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and enhanced to post here, was taken on June 29, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The scientists label the picture simply as “gully monitoring,” with an apparent goal of looking to see if this gully has changed since MRO took the first high resolution image two years previously. In the interim this terrain went from Martian spring, through summer and winter, and has now returned to spring.

As far as I can tell, no changes are visible, but then I am not using the highest resolution data available. Small changes might be detectable in the highest resolution using good detection software. Overall, the gully drops about 3,000 feet.

The white dot in the overview map above marks the location, on the southwest interior rim of an unnamed 30-mile wide crater. This region in the Martian cratered highlands was featured in a four part cool image series I did back 2023 (here, here, here, and here), with this as my conclusion:

Overall, our short survey of the southern cratered highlands suggests that the glacial material and ice found in the southern mid-latitudes affects the Martian surface differently than in the northern lowland plains. In the north the craters and the surrounding terrain often appear blobby, as if the ice is close to the surface and also a dominant component of the ground. Impacts therefore cause significant soft melt features, with craters often heavily distorted. Similarly, there is evidence of the existence of past mud volcanoes that once spewed water and mud from below ground.

In the south however the surface is at a higher elevation, and it appears the ice layer is deeper underground. Thus, it appears the ground is more firm, and the only obvious evidence of an underground layer of ice is revealed when sublimation and the subsequent erosion produce these large pits inside craters.

In the case of this crater, a small impact on its interior southwest slope apparently caused that underground layer of ice to melt temporarily and flow downhill, leaving behind the gully and flow features we see today. Based on the two MRO pictures taken a full Martian year apart, it appears the feature is generally stable and thus likely old, left over from that impact. If things are changing seasonally they are doing so in small amounts and slowly.

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Amateur gets new image of China’s X-37B copy in orbit

9:42 am

An amateur astronomer, Felix Schöfbänker, has released a new picture he took of China’s X-37B-type reusuable mini-shuttle while it was in orbit and prior to its landing on September 6, 2024.

The picture is low resolution and not very pretty, but it does appear to show that the mini-shuttle has a delta wing design.

While the recent space plane flight was underway, space watcher veteran Felix Schöfbänker in Upper Austria took imagery of the craft. In a recent posting, Schöfbänker reported he has imagery taken Aug. 10 of the Chinese space plane which shows a delta-wing design, captured when the craft turned 180 degrees since an earlier observation he made on July 30.

Schöfbänker also theorizes that the dark area between the wings could be the mini-shuttle’s cargo bay.

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A puzzling striped rock on Mars

9:32 am

A striped rock on Mars
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on September 13, 2024 by one of the high resolution cameras on the Mars rover Perseverance. The rock’s striped nature makes it unique, unlike any feature spotted by any rover previously. From an update today:

The science team thinks that this rock has a texture unlike any seen in Jezero Crater before, and perhaps all of Mars. Our knowledge of its chemical composition is limited, but early interpretations are that igneous and/or metamorphic processes could have created its stripes. Since Freya Castle [the name the science team gave the rock] is a loose stone that is clearly different from the underlying bedrock, it has likely arrived here from someplace else, perhaps having rolled downhill from a source higher up. This possibility has us excited, and we hope that as we continue to drive uphill, Perseverance will encounter an outcrop of this new rock type so that more detailed measurements can be acquired.

Without doubt the rock’s rounded surface suggests it was ground smooth by either water or ice. That surface certainly resembles glacial cobble seen across the northeast of the U.S. where ice glaciers once covered the entire landscape. The rock also resembles river cobble, smoothed by flowing water.

The stripes however suggest that prior to its being smoothed, this rock underwent a much more complex geological process, whereby two different materials were intermixed and squeezed together.

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