Category: Points of Information

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

Update on Starship/Superheavy at Boca Chica

10:48 am

Link here. Progress is being made, but it remains unclear when the next orbital test flight of Superheavy/Starship will take place. Musk had predicted early August, and though the company appears getting close, there remains no word yet on from the FAA about issuing a launch license.

The article at the link however provides a lot of information about the construction of the second launch site at Boca Chica, as well as the future Starship prototypes to be launched. The next flight, the fifth, will use what SpaceX is calling its Block 1 version of the spaceship. The sixth flight will also fly this version. The seventh flight however will fly what SpaceX dubs its Block 2 verison, incorporating many upgrades and changes based on the previous test flights.

This information suggests several things. First, SpaceX wants to do three more orbital test launches in the near future, likely before the end of this year. Whether the FAA will allow such a thing remains unknown. The environmental reassessment that it issued in 2022 allows SpaceX to do five launches per year at Boca Chica, but requires the company to get FAA approval for each one, and also requires SpaceX to submit extensive paperwork before that approval will even be considered. Whether the FAA can move quickly enough between test flights to get this three more launches completed before December seems very doubtful, based on its past track record.

Second, it gives us a sense of the overall development. In developing Falcon 9, SpaceX went through five Block designs before the operational Block 5 that now flies so routinely. The company however was flying operationally and profitably by Block 2. If SpaceX is now moving to Block 2 for Starship, it means it is likely confident that this version will be capable of returning Starship to the ground undamaged and up to additional flights.

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ULA squelches independent photography of its launches

10:27 am

For reasons that appear fundamentally stupid, ULA early in July announced that it will now forbid independent freelance photographers who use the remote sites inside the launch facility at Cape Canaveral from selling their pictures independently.

The language was clear: Photographers were welcome to set up remote shots at ULA launches if they worked for the media or wanted to post their work on social media. However, photographers could not sell this work independently, including as prints for fellow enthusiasts or for use in annual calendars.

“ULA will periodically confirm editorial publication for media participating in remote camera placement,” the email stated. “If publication does not occur, or photos are sold outside of editorial purposes, privileges to place remote cameras may be revoked.”

In other words, photographers who come to Cape Canaveral to take pictures will only be allowed to do so it they are working for professional media, or are selling their work to news outlets. Photographers who make a living selling prints to collectors, or simply post them on social media in order to garner traffic, will eventually lose their access to the sites.

The article suggests this policy was instituted because managing the number of photographers had become unwieldy, but that is a pure guess, since ULA has not provided any explanation, nor has it responded to any questions from other press outlets.

From a PR point of view, this decison by ULA makes no sense. All it does is antagonize the public and the press, while reducing its public footprint. In this age of social media, publicity comes not just from major media outlets, but from the independent individuals writing for their own websites or X feeds.

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First flight of government-built hopper to test vertical landings delayed two years

10:12 am

Callisto's basic design
Callisto’s basic design

This story about a first stage government-built Grasshopper-type rocket designed to demonstrate and test vertical landing has instead become a perfect demonstration of why governments should not design, build, and own anything.

It appears the first test flight of the Callisto test rocket, first proposed in 2015 and being built by a joint partnership of the German (DLR), French (CNES), and Japanese (JAXA) space agencies, has now slipped from 2024 to 2026.

Earlier this month, CNES deployed a refreshed website. Prior to that deployment, the agency’s Callisto project page had stated that the rocket’s first flight would occur in 2024. The new Callisto project page has a more detailed timeline, stating that the detailed design phase will be completed by the end of 2024. Vehicle integration in Japan is then expected in 2025, followed by a first launch from the Guiana Space Centre between 2025 and 2026. This revision outlines an approximate two-year slip in the project’s timeline. [emphasis mine]

These three agencies took almost a decade to simply conceive and design the project. Apparently they not yet even built anything. This despite a budget of slightly less than $100 million carved out of the entire budget for creating the Ariane-6 expendable. Compare that with SpaceX, which conceived its Grasshopper vertical test prototype in 2011, began flying that year, and resulted in an actual Falcon 9 first stage landing in 2015.

Will Callisto ever fly? Maybe, but don’t expect it to produce a rocket that is financially competitive with SpaceX. Instead, expect these three government agencies to subsidize its cost in order to make its price competitive on the open market. More likely Callisto will fly a few times, but will likely result in no new orbital rocket. Instead it will be superseded by the private rocket startups worldwide that are now building actual orbital rockets and will likely make them reuseable before Callisto even leaves the ground.

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July 31, 2024 Quick space links

4:03 pm

Courtesy of BtB’s stringer Jay. 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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Boeing names new CEO, set to take over on August 8, 2024

10:32 am

Boeing today named a new CEO, Robert “Kelly” Ortberg, who among the candidates being considered appears to be the only one who did not have a long career at Boeing.

Ortberg emerged as a leading candidate only recently. Others who were reportedly considered for the job included Patrick Shanahan, a former Boeing executive and now CEO of its most important supplier, Spirit AeroSystems, and another longtime Boeing executive, Stephanie Pope, who recently took over the commercial airplanes division.

Ortberg led Rockwell Collins from 2013 to 2018, when it merged with United Technologies and wound up as part of RTX, the company formerly known as Raytheon. He retired from RTX in 2021.

He will take charge of the company as of August 8, 2024.

It remains to be seen if Ortberg can fix things. As the article notes, since 2019 Boeing has lost more than $25 billion, and has been saddled with numerous quality control failures in almost all its technical divisions, from building airplanes to providing maintenance to building space capsules. The failures in its airplane divisions resulted in several crashes that killed 346 people, and caused it to accept a deal with the Justice Department that included a fine of $243.6 million to avoid a criminal trial. That deal however has not yet been accepted by the judge in the case.

Ortberg will have to demonstrate somehow that the culture at Boeing itself has changed. The first thing he could do to indicate he is serious about doing so would be to shut down entirely Boeing’s Diversity, Equity, and Inclusion (DEI) bureaucracy. Getting rid of that poisonous race-based anti-quality program would go a long way in convincing others that Ortberg means business, and wants to put talent, skills, experience first in everything Boeing does, something previous CEOs have clearly not done.

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A review of Japan’s effort to create a commercial space industry

9:54 am

Link here. The article does a nice job outlining the efforts of the new startups in Japan that have been successful in flying missions, such as the orbital tug company Astroscale and the lunar lander company Ispace, as well as newer companies such as Shachu, which proposes building and selling modules for use on any one of the new commercial space stations under construction.

The article also talks at length about Japan’s newly created ten year $6.5 billion strategic fund, designed to be provide funding for many different commercial projects and inspired by NASA recent switch from being the designer, builder, and owner of everything to simply a customer buying products from the private sector.

The fund has been given to Japan’s space agency to administer, and it remains unclear whether that government agency is prepared to give up power to the private sector as NASA has. This quote illustrates this uncertainty:

Since the effort is just starting, both companies and JAXA are uncertain how well the fund will work. Yasuo Ishii, senior vice president of JAXA, said the agency has assigned 450 people to administer the fund, including researchers and other experts. “We used to be an R&D institution and now we’re a funder,” he said.

He said JAXA will closely monitor progress on the initial awards made through the fund. “If some don’t go well, we may terminate them.”

It seems JAXA is so far using this fund to establish a large bureaucracy for itself, rather than issuing contracts to the private sector to build things JAXA needs.

We shall see how this plays out. The Japanese aerospace industry appears to be similar to the American space industry around 2008, with lots of old established big companies working hand-in-glove with the government space agency and a lot of small startups trying to establish themselves as competitors. In the U.S. at that time NASA was very resistant to give contracts to the startups. It took strong political pressure from within the upper levels of government, first in the Obama administration and then in the Trump administration, to force a change at NASA. Whether this will happen in Japan remains unknown.

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China scientists propose both a communications and GPS-type infrastructure on the Moon

9:34 am

In line with the remarkably rational and long term plans China has developed for exploring the solar system, Chinese scientists have proposed the country develop both a communications and GPS-type infrastructure on the Moon, with both including constellations of satellites in orbit as well as facilities on the ground.

A first phase would establish satellites in elliptical frozen orbits around the moon. A second phase would see further … satellites and spacecraft at Earth-moon Lagrange points 1, 2, 4 and 5, a near-rectilinear halo orbit (NRHO), and a spacecraft in geostationary orbit, termed a cislunar space station.

A third and final phase would add satellites in existing and new distant retrograde orbits (DRO), forming a near-moon space and extended space constellations. The system also includes comprehensive ground-based facilities.

While this plan is simply a proposal, it fits with China’s overall strategies for lunar exploration, all of which are designed carefully so that they can be scaled up for more complex operations there as well as elsewhere in the solar system. And based on China’s track record in space in the past decade, we should be entirely confident this program or some variation will be built.

That is, unless China undergoes a major economic collapse and a change in leadership that has different priorities.

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July 30, 2024 Quick space links

3:26 pm

Courtesy of BtB’s stringer Jay. 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.

Jay notes, as I do, that today has been a slow news day in the world of outer space.

 

 

 

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ULA completes its 4th launch this year and last Atlas-5 launch for the Space Force

9:10 am

Though ULA’s Atlas-5 rocket still has a number of launches on its manifest before it is retired, early this morning the company successfully completed the last Atlas-5 launch for the Space Force, the rocket lifting off from Cape Canaveral in Florida.

This was ULA’s fourth launch in 2024, the most in a year for the company since 2022. The leader board for this year’s launch race remains unchanged:

74 SpaceX
31 China
8 Rocket Lab
8 Russia

American private enterprise however now leads the rest of the world combined in successful launches 87 to 47, while SpaceX by itself still leads the entire world combined, including American companies, 74 to 60.

Note: A Rocket Lab that had been scheduled for today has been delayed two days.

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July 29, 2024 Quick space links

3:34 pm

Courtesy of BtB’s stringer Jay. 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.

 

  • On this day in 1958 President Eisenhower signed legislation that created NASA

    • The agency was created out of an older government agency, the National Advisory Committee for Aeronautics (NACA). Eisenhower had not been enthused by this idea (seeing it as another example of the military-industrial complex teaming up with the federal bureaucracy for their own crony deals), but the politics of the Cold War forced it upon him.

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Meandering Martian ridges flowing down from crater rim

2:00 pm

Meandering Martian ridges
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and enhanced to post here, was taken on February 9, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a good example of the typically rough region inside the southern cratered highlands of Mars.

Note the ripple dunes that fill the low areas. The volcanic ash from Mars’ past volcanic history has become trapped here, with those ripple dunes suggesting the direction of the prevailing winds to the southeast.

The bright areas also suggest there is interesting mineralogy just below the surface. The 100-foot-high mesa near the picture’s top suggests a lot of erosion has occurred here, with its top suggesting the elevation of the surface a long time ago.

The most interesting feature however is the meandering ridge that starts at the lower right and weaves to the upper left.
» Read more

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Google monitors and censors Gmail and Googlegroup emails for political content it dislikes

1:07 pm

Google, hostile to free speech

Reason 2,458,210,539 to stop using Google: We now have solid evidence that Google monitors and censors emails sent out using either Gmail or to Googlegroup listservs, because it censored emails discussing Robert F. Kennedy’s independent candidacy for the presidency.

The story at the link describes how the author, Lori Wentz of the Brownstone Institute, on June 27, 2024 emailed to a Googlegroups listserv a link to an X livestream where Kennedy would give his own answers to the questions in the live debate between Trump and Biden on June 28, 2024. In doing so the author also included some of her own thoughts, which resulted in an exchange on the political listserv about the subject. She subsequently got the following notice from Googlegroups:

“We’re letting you know that we’ve permanently removed [your] content…An external report flagged the content for illegal or policy violations. As a result, our legal content and policy standards team removed the content for the following reason: unwanted content.”

Wentz had no way of finding out what that “unwanted content” was, as Googlegroups did not provide this essential information, instead informing her that she would simply have “to pursue your claims in court.”
» Read more

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Senate gives NASA cash to stop its tantrum

9:35 am

Surprise, surprise! As expected after NASA proposed major cuts in several missions, such as the Chandra Space Telescope and the OSAM demo robotic refueling mission, the subcommittee of the Senate Appropriations Committee has rejected those cuts and instead proposed that NASA not only get everything it asked for, it be forced to take more money than it requested.

I am certain that NASA is not going to complain, as this was its plan from day one. The cancellation of Chandra was intended as a toddler’s tantrum that our weak Congress was certain to bow to and come up with the cash. It has now done so.

The report directs NASA to spend at least $98.3 million on Hubble and up to $72.1 million on Chandra, similar to the budgets for those missions in recent years, emphasizing the ability of the telescopes to work in conjunction with the James Webb Space Telescope.

In this case the Senate action makes some sense, as these cuts would have been penny wise and pound foolish. But NASA knew that. If the Senate was really interested in controlling the budget (which it is not) it would have funded Chandra and Hubble as described, but demanded cuts from NASA elsewhere.

Instead the Senate committee not only demands that these telescopes be maintained, it doles out extra money the nation doesn’t have for other projects that NASA wanted to cut for entirely legitimate reasons. OSAM for example was conceived more than a decade ago as a mission designed to demonstrate robotic refueling in space. After spending a billion and a decade, it had still not flown, and during that time private companies had not only successfully demonstrated this capability several times for far less, they had done so in a far simpler and more profitable manner. The technical need for OSAM was gone. Why spend the additional billion we can’t afford for a project that will prove nothing?

Congress, especially the Senate, likes wasting money however, and so the appropriations committee in an entirely bi-partisan effort is pushing to revive OSAM, as well as several other projects that have either gone over budget or NASA had deemed correctly were unaffordable.

The dark age has already begun in many ways, but its official start will be marked by future historians by the date the United States undergoes a full financial collapse, due to its government’s unwillingness to rein in a national debt that is now in the many many trillions and growing uncontrollably each day.

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Boeing completes full series of static hot fire engine burns on Starliner while docked to ISS

9:38 am

Boeing announced today that engineers have successfully completed a full series of static hot fire engine burns testing all of Starliner’s attitude thrusters while still dockecd to ISS.

The one-pulse firings were designed to confirm the performance of each thruster. Aft-facing thrusters were fired for 1.2 seconds and all others for .40 seconds. Between each firing, the team reviewed real-time data and all thrusters performed at peak thrust rating values, ranging from 97-102%. The helium system also remained stable. Additionally, an RCS oxidizer isolation valve that was not fully seated previously, was cycled several times during today’s testing and is now operating normally.

This is the second time the spacecraft has been hot fired successfully while docked, an integrated operation the station and Starliner teams will also conduct during future long-duration missions.

This result is not a surprise, based on the information provided during the most recent briefing. It confirms the data obtained during previous hot fire tests both on a Starliner on the ground and the Starliner docked to ISS. Not only does it appear that Boeing has enough information to fix this problem so it does not occur again, it has proven unequivocally that these thrusters as well as the helium leaks inside the thruster systems pose no unusual risk for a return in the capsule.

NASA and Boeing have a planned review of these results this coming week, when we should expect them to name a return date, likely sometime in the first two weeks of August.

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SpaceX launches another 20 Starlink satellites

9:30 am

I had my days wrong last night. In the previous post I said that SpaceX had another launch scheduled for later tonight. In actuality that launch was today, but in the wee hours early this morning. Four hours after a Falcon 9 placed 23 Starlink satellites into orbit from Cape Canaveral, another Falcon 9 placed 20 Starlink satellites into orbit from Vandenberg in California. That’s three launches in just one day.

The first stage completed its seventeenth launch, landing on a drone ship in the Pacific.

The leaders in the 2024 launch race:

74 SpaceX
31 China
8 Rocket Lab
8 Russia

American private enterprise now leads the rest of the world combined in successful launches 86 to 47, while SpaceX by itself leads the entire world combined, including American companies, 74 to 59.

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SpaceX launches another 23 Starlink satellites

10:17 pm

SpaceX tonight completed its second launch in two nights since resuming launches after a two-week halt after the July 11th upper stage launch failure, its Falcon 9 rocket lifting off from Cape Canaveral and placing another 23 Starlink satellites in orbit.

The first stage completed its fourteenth launch, landing on a drone ship in the Atlantic.

The leaders in the 2024 launch race:

73 SpaceX
31 China
8 Rocket Lab
8 Russia

American private enterprise now leads the rest of the world combined in successful launches 85 to 47, while SpaceX by itself leads the entire world combined, including American companies, 73 to 59.

SpaceX has another launch scheduled for tomorrow night.

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Local billionaire landowner renews his oppposition to the Sutherland spaceport

10:58 am

Proposed spaceports surrounding Norwegian Sea
Proposed spaceports surrounding Norwegian Sea.

An effort by the proposed Sutherland spaceport on the north coast of Scotland to place a tracking dish on a nearby peak — where other telecommunication dishes are already installed — is now being fought by local billionaire landowner Anders Holch Povlsen, who had previously tried and failed to stop construction of the spaceport entirely.

The spaceport’s main customer, the rocket startup Orbex, has already experienced endless red tape from the United Kingdom’s Civil Aviation Authority (CAA). It applied for a launch license in February 2022, and almost two-and-a-half years later still has not gotten an approval. It had previously announced a first launch that year, and has been stymied since, not only by the CAA but by local authorities who have demanded it make many changes to its construction plans.

Povlsen, who has himself invested in the competing Saxavord spaceport on the Shetland Islands, has repeatedly acted to block Sutherland, so far with no success. This new suit is especially absurd — claiming the new dish would harm the local landscape — which is why the local councils appear ready to reject it.
» Read more

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To guarantee no capsule debris hits inhabited areas, SpaceX to move its manned splashdowns to Pacific

10:32 am

As part of the changes SpaceX is instituting to the de-orbit procedures of its Dragon capsules in order to end any chance parts of the service module will fall in inhabited areas (as has happened several times in the past few years) the company will be shifting all manned splashdowns to the Pacific Ocean.

Repeated issues with large chunks of debris from Dragon — “trunks” where the fuel and electrical supplies are held — have repeatedly crashed down in areas ranging from Australia to North Carolina. One measure to fix that will be tasking future spacecraft after Crew-9, perhaps as soon as Crew-10, to splash down on the U.S. Pacific coast, SpaceX said during a press conference today (July 26).

“What we’ll do is we’ll implement a software change to complete the deorbit burn before jettisoning the trunk, like we did with Dragon-1, and then the trunk will intentionally land […] in an unpopulated area of the ocean,” Sarah Walker, SpaceX’s director of Dragon mission management, said in the livestreamed briefing. “So to make this change possible, we’ll move a Dragon recovery vessel to the Pacific sometime next year.”

Crew-9 is now scheduled to launch to ISS on August 18th on a six month mission, landing sometime in February 2025. Crew-10 would launch about that time and land sometime in August, 2025.

Side note: The announcement yesterday of August 18th for the launch of the next Dragon manned mission suggests NASA is now confident it can determine a date prior to that for returning Starliner. This reinforces the fact that the astronauts and Starliner are not “stranded” on the station, and any news source that states or even implies such a thing indicates it is a place where you are likely getting junk news, on all its stories.

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SpaceX’s Falcon 9 resumes launches, successfully launching 23 Starlink satellites

11:44 pm

SpaceX tonight successfully resumed launches of its Falcon 9 rocket after a July 11, 2024 launch was a failure due to an engine leak in the upper stage. The rocket lifted off from the Kennedy Space Center in Florida, successfully placing 23 Starlink satellites into orbit.

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

The leaders in the 2024 launch race:

72 SpaceX
31 China
8 Rocket Lab
8 Russia

American private enterprise now leads the rest of the world combined in successful launches 84 to 47, while SpaceX by itself leads the entire world combined, including American companies, 72 to 59.

SpaceX has additional launches scheduled for tomorrow and the next day, so these numbers are only temporary.

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July 26, 2024 Quick space links

3:13 pm

Courtesy of BtB’s stringer Jay. 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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Do Kepler’s sunspot drawings tell us the length of the solar cycle in the 17th century?

9:19 am

Kepler's first sunspot drawing
Click for original image.

The uncertainty of science: Scientists have done a new analysis of Johannes Kepler’s three drawings of sunspots on the Sun in 1607, and have concluded that the solar cycle at that time — just before the start of the Maunder grand minimum of no sunspots for decades — was about the same length, 11 years, that has been measured since the 1700s onward.

You can read the peer-reviewed paper here. The drawing to the right is figure 1 in that paper, and shows Kepler’s first drawing of the Sun’s surface showing sunspots. From the paper’s conclusion:

In combination with sunspot drawings in the 1610s–1620s, it is reasonable to suppose that the duration of the Solar Cycle −13 was between 11 and 14 yr. This does not support Miyahara et al.’s claim of anomalously long/short durations for Solar Cycle −13 (16 yr) and Solar Cycle −14 (5 yr) but supports Usoskin et al.’s reconstruction of regular durations of Solar Cycle −13 (11 yr) and Solar Cycle −14 (14 yr).

In other words, the solar cycle prior to the sixty-plus yearlong Maunder Minimum, when few to none sunpots occurred, was about eleven years long, like now, and not five years or sixteen years long, as some scientists have theorized. Knowing the length and nature of the cycle before the Maunder grand minimum would help scientists predict when the next minimum might occur. It would also help them better document the Sun’s long term behavior.

There is however great uncertainty in this result, since there really is so little data about sunspots prior to the Maunder Minimum. Before Galileo’s first use of the telescope in astronomy in 1609, such observations like Kepler’s were rare and very difficult. The conclusions here are intriguing, but hardly convincing.

In fact, it is really impossible to get a defiinitive answer from this data. We really won’t know how the Sun behaves just prior to a grand minimum until it happens again and scientists can use modern technology to observe it.

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July 25, 2024 Quick space links

4:03 pm

Courtesy of BtB’s stringer Jay. 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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Zebra layering in the Martian high southern latitudes

1:39 pm

Zebra layering in the Martian high southern latitudes
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on May 16, 2024 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The science team labeled it simple as a “terrain sample,” which usually indicates a picture not taken as part of any specific request or research project, but to fill a gap in the photography schedule in order to maintain the camera’s proper temperature.

When such pictures are necessary, the camera team tries to target the most interesting features that will be below MRO during the required time period. In this case they aimed for a north-facing slope, about 340 feet high, made up of a series of terraced layers, distinguished by the sharply contrasting bright flat benches and very dark cliff-faces.

While the cliffs are dark partly because of the sun is coming from the west, putting them in shadow, it is not entirely the cause. Note how the cliffs on the west side of the mound are also dark, suggesting that the darkness is a fundamental feature of the ground itself.
» Read more

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Webb: Carbon monoxide detected on surface of Uranus’s moon Ariel suggests an underground ocean

12:04 pm

The best image of Ariel, as seen by Voyager-2, January 24, 1986
Voyager-2’s best image of Ariel during the
January 24, 1986 fly-by. Click for original.

By doing infrared spectroscopy using the Webb Space Telescope, scientists have detected carbon monoxide (CO) and confirmed extensive carbon dioxide (CO2) deposits on the surface of Uranus’s moon Ariel, with the carbon monoxide suggesting the moon has an underground ocean.

Using NASA’s James Webb Space Telescope to collect chemical spectra of the moon and then comparing them with spectra of simulated chemical mixtures in the lab, a research team led by Richard Cartwright from the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, found that Ariel has some of the most carbon dioxide-rich deposits in the solar system, adding up to an estimated 10 millimeters (0.4 inches) or more thickness on the moon’s trailing hemisphere. Among those deposits was another puzzling finding: the first clear signals of carbon monoxide.

“It just shouldn’t be there. You’ve got to get down to 30 kelvins [minus 405 degrees Fahrenheit] before carbon monoxide’s stable,” Cartwright said. Ariel’s surface temperature, meanwhile, averages around 65 F warmer. “The carbon monoxide would have to be actively replenished, no question.”

You can read the peer-reviewed paper here [pdf]. Though there are a number of ways in which the carbon monoxide can be replenished, the scientists think it is coming from an underground ocean. From the paper’s abstract:

The evidence for thick CO 2 ice deposits and the possible presence of carbonates on both hemispheres suggests that some carbon oxides could be sourced from Ariel’s interior, with their surface distributions modified by charged particle bombardment, sublimation, and seasonal migration of CO and CO 2 from high to low latitudes.

This theory however has not been confirmed, and the scientists admit it will take a probe making close observations of Ariel to find out for sure.

Hat tip to stringer Jay for this story.

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Sierra Space successfully completes 2nd test-to-failure of a full scale LIFE inflatable module

11:40 am

Sierra Space's family of planned LIFE modules
Sierra Space’s family of planned LIFE modules. Click for original

Sierra Space today announced it has completed a second successful test-to-failure of a full scale version of its LIFE inflatable module, intended for use not only on Blue Origin’s proposed Orbital Reef space station, but also available for purchase by other space station.

The latest test by the numbers:

  • Company’s second Ultimate Burst Pressure test of a full-size, inflatable space station structure occurred on June 18
  • Test unit stood over 20’ tall and was comparable in size to an average family home
  • The article was 300 m³ in volume, or 1/3rd the volume of the International Space Station
  • Test results exceeded NASA’s recommended x4 safety levels by 22%
  • Two 4-ft x 4-ft steel blanking plates were integrated into the highest loaded cylinder section of the article; both were 50 lbs. lighter than the ones used in the first full-scale test and accommodate larger windows

The test article in the company’s historic first full-scale burst test last December peaked at 77 psi, which well exceeded (+27%) NASA’s recommended level of 60.8 psi (maximum operating pressure of 15.2 psi multiplied by a safety factor of four). This most recent test in June showed similar results – within five percent of the pressure loading of December’s test article – with this one reaching 74 psi, exceeding NASA’s 4x safety factor by 22 percent. These back-to-back test results accelerate Sierra Space’s path to flight certification, verifying scalability for 10 cubic-meter and up to 1,400 cubic-meter structures based on the company’s current softgoods inflatable architecture. Sierra Space is currently gearing up for a first test of its 500 cubic-meter space station technology next year.

Video of this test, dramatically edited with its own music soundtrack, can be seen at the link.

It is intriguing that the only developments related to Orbital Reef appear to come from Sierra Space. From Blue Origin — supposedly the lead company in that project — we hear almost nothing. Though Sierra Space has said the partnership is still solid, it has also made it clear it is building the LIFE module not just for Orbital Reef. I think it is hedging its bets, anticipating that Orbital Reef will be another Blue Origin dud, and wants to market itself to others.

Hat tip to stringer Jay for this story.

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NASA/Boeing: Cause of Starliner thruster failure identified

10:21 am

According to NASA and Boeing officials, ground static fire engine tests have now identified the likely cause of the thruster failures on the Starliner capsule during its docking to ISS in early June, and puts them in a position next week to determine a return date for the capsule and its two astronauts.

It appears the problem is related to teflon seals in the thrusters, detected while engineers did a series of tests on the ground with another Starliner capsule. Based on this information, Boeing thinks it can fix the problem on future capsules, while also insuring there will be no problems returning the astronauts from ISS.

The thrusters in question are all attitude thrusters, where there is a lot of redundancy and the issue has been seen to be well controlled from the start. The larger thrusters used for the undocking and de-orbit burn have been tested as well, and have not shown any similar issues at all.

The ground tests have also identified the cause of the helium leaks within the capsule engine system. Boeing will use this data to fix later capsules as well. These leaks are not a concern for the return to Earth.

The plan now is to do in the next few days one more set of static fire tests with the capsule docked on ISS, doing short bursts with all the attitude thrusters to further confirm what has been learned on the ground. If that goes as expected, a final meeting next week will determine the return date for the capsule and crew.

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Hungary/Axiom finalize deal to fly a passenger on its AX-4 commercial manned mission to ISS

9:52 am

Hungary and Axiom have finalized their agreement to fly 32-year-old mechanical engineer Tibor Kapu on Axiom’s AX-4 commercial manned mission to ISS, presently targeting an October 2024 launch date.

That flight will use a Dragon capsule and last 14 days. Kapu would be the second Hungarian to ever fly in space, following Bertalan Farkas’s eight day mission in 1980 in a Soyuz capsule during the Soviet era.

Hungary and Axiom had worked out an initial agreement in 2022, with the country to pay the company $100 million for the flight. At that time the flight was to last 30 days, not two weeks. It was also unclear if the mission would be free-flying or dock with ISS, or even whether it would fly on a Dragon or Starliner capsule. There is no word on how these changes have impacted the price.

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Saxavord: We will get our last required spaceport license by September

11:45 pm

Proposed spaceports surrounding Norwegian Sea
Proposed spaceports surrounding Norwegian Sea.

My heart be still: According to one official of the Saxavord spaceport in the Shetland Islands, it expects to get its last required spaceport license from the Civil Aviation Authority (CAA) of the United Kingdom sometime in September of this year.

In a presentation at the Farnborough International Airshow here July 23, Scott Hammond, deputy chief executive and operations director of SaxaVord Spaceport, said he expected the spaceport to receive the last of the licenses from U.K. regulators in September needed to host the inaugural launch of Rocket Factory Augsburg’s RFA ONE rocket there.

The red tape getting the first launch off at Saxavord has been odious and disheartening, to say the least. After almost two years of deliberations, the CAA awarded the spaceport its spaceport license in December 2023. This finally allowed it to be a spaceport, but apparently that was insufficient for it to be allowed to do any launches. The CAA then took three more months to issue what it called the range license.

Saxavord was still not allowed to do any launches. The CAA demanded one more license for what it calls “airspace access for launches.” I have no idea how this is different than the range license, unless the CAA has separated control of the surface from the air space, and thus requires two separate licenses for each. Either way, getting that approved has now dragged on for months. No one should be confident Saxavord’s September prediction for approval will turn out to be true.

All these licenses however will still not permit any launches to proceed. The CAA also requires each particular rocket company to get its own launch license. Though Saxavord as well as Rocket Factory are targeting a launch before the end of the year, soon after getting that last airspace license, they might be counting their chickens before they hatch, based on the CAA’s track record with Virgin Orbit.

After Cornwall got all its CAA licenses to allow Virgin Orbit to launch from that airport, Virgin thought it would be able to get is launch license quickly and launch within only a few months. Instead, the CAA took about a year to issue Virgin its launch license, with that long delay eventually becoming the main reason the company went bankrupt.

Rocket Factory unfortunately appears to have locked itself into Saxavord. It has already done a static fire test of its first stage there, and has delivered the rocket’s upper stage. If the CAA takes its time again giving its approval, the startup might find itself bleeding cash, as Virgin Orbit did.

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