Category: Points of Information

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

Spinlaunch completes 10th test launch, this time for outside customers

9:15 am

Spinlaunch prototype launcher

Capitalism in space: Spinlaunch on September 27, 2022 successfully completed the 10th test launch of its radical spin launch centrifuge, this time accelerating test components to approximately 35k feet for other potential customers, including NASA.

Flight Test 10, which had a similar flight trajectory as previous campaigns, was witnessed by more than 150 partners, government officials, and industry advocates. It was SpinLaunch’s tenth flight test in just under eleven months since the Suborbital Mass Accelerator came online in late 2021.

…Four partner payloads, as well as two instrumentation payloads, were flown on the Suborbital Accelerator Flight Test Vehicle. For partners, the flight test provided critical data on the launch environment and payload integration process.

As part of the pre-flight qualification process, SpinLaunch accelerated payloads up to 10,000G in SpinLaunch’s 12-meter Lab Accelerator at its Long Beach headquarters. Payloads were inspected post-spin and subsequently integrated into the Flight Test Vehicle in preparation for Flight Test 10.

It remains to be seen whether this technology will work for launches to orbit. Even if it does, because of the stress produced during spin up this launch technique will really only work for bulk payloads to orbit, such as water and oxygen. If it works however it could reduce launch costs for these items tremendously.

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October 3, 2022 Quick space links

1:09 pm

All but the first provided by stringer Jay, who trolls Twitter so I don’t have to. A lot of launches by the U.S. in the next four days.

 

 

 

  • Rocket Lab targeting October 6, 2022 for its next launch

    • It will place a NOAA satellite into orbit. The company will not attempt a recovery of the rocket’s first stage. That same day SpaceX also has a launch planned, the third for the company in a little more than three days.

 

 

Based on numerous sources, including at least one owner of a payload, this is not true. The second stage under performed. Instead of a 300 kilometer orbit, the second stage deployed at a lower orbit, either 223×283 kilometers, or 210×270 kilometers, depending on source. (The latter is likely more accurate, as it is more recent.)

Not a good look for new CEO Weber, or Firefly. The under performance is something that can be fixed. To make believe it didn’t happen only makes you look disingenuous and unable to face reality.

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Two days after DART’s impact of Dimorphus, ejected dust extends like a comet tail out more than 6,000 miles

12:23 pm

Dust tail from Dimorphus two days after DART impact
Click for full image.

Using a telescope in Chile, astronomers photographed the ejecta two days after the impact of DART into the 525-foot-wide asteroid Dimorphus, and detected a tail of dust extending out more than 6,000 miles.

The picture to the right, cropped and reduced to post here, shows that tail.

In this new image, the dust trail — the ejecta that has been pushed away by the Sun’s radiation pressure, not unlike the tail of a comet — can be seen stretching from the center to the right-hand edge of the field of view. … At Didymos’s distance from Earth at the time of the observation, that would equate to at least 10,000 kilometers (6000 miles) from the point of impact.

Didymos is the larger parent asteroid that Dimorphus orbits.

It is still too soon to get the numbers on how Dimorphus’s path in space was changed by that impact. In fact, we still really don’t have a clear idea what is left of Dimophus itself. The ejecta cloud needs to clear somewhat to see what’s hidden inside it.

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Today’s blacklisted Americans: All normal girls banned from locker room because one cross-dressing boy demanded it

12:09 pm

Blake Allen, punished for being a normal high school girl
Blake Allen, punished for being a normal high school girl

They’re coming for you next: This story, which broke on September 28, 2022, is so absurd that at first glance it is hard to believe: Officials running Randolph High School in Vermont have banned from the girls locker room all girls from the school’s volley ball team because one cross-dressing boy was using it and the girls had the unmitigated nerve to express strong discomfort changing clothes in the presence of a male.

The quote below tells the tale, but in order to make it more precisely describe reality, I have replaced the meaningless words (“trans”, “transgender” “they”) that our queer dictators have imposed on mainstream news sources with words that actually describe the facts.

[Blake] Allen [one of the girls] says that the dispute started when the [boy who likes to wear woman’s clothing] made an inappropriate comment while members of the volleyball team were getting changed. She says her issue is not with having the [cross-dresser] student on the team or at school, but specifically in the locker room. “There are biological boys that go into the girl’s bathroom but never a locker room,” Allen said.
» Read more

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Europa in true color

9:37 am

Europa in true color
Click for full image.

The photo to the right, cropped and reduced to post here, was taken on September 29, 2022 by the Jupiter orbiter Juno during its close fly-by of Europa. Citizen scientist Bjorn Jonsson has processed it to bring out the details. From his caption:

This is an approximately true color/contrast, reprocessed version of Europa image PJ45_1. It is more carefully processed than the version I posted very shortly after the raw image data was released. The color should be fairly close to Europa’s real color and probably slightly more accurate than the color of the earlier version I posted. North is up.

The Sun is coming from the right, so those are craters in the upper left, close to the shadowed limb of the planet. The red color has been known for decades, and appears in many cases to be seepage coming up from the many meandering ridges that criss-cross the planet’s surface. Their chemistry/make-up is not fully known at this time.

Juno came within 219 miles of Europa, the closest any spacecraft has come since the Galileo orbiter circled Jupiter in the 1990s. I was expecting close-up images of the surface, from that close distance, but have not yet seen any. Instead, most of the images released and processed by citizen scientists have been global images from farther away. Thus, at this moment it does not appear Juno took pictures at this closest distance.

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Tiny cobbles on Mars

9:16 am

Tiny cobbles on Mars

Our second cool image takes us from grand galaxies, one of the universe’s largest coherent objects, to tiny cobbles on Mars. The picture to the right, taken by one of Perseverance’s close-up cameras on September 29, 2022, covers an area less than an inch across, making the largest rounded pebbles in this image only a few millimeters in size.

The rover presently sits on the floor of Jezero Crater, at the base of the delta that flowed into that crater eons ago. The data suggests that delta was created by flowing water entering a lake that filled the crater.

Did flowing water create these cobbles? These pebbles all have the look of the rounded cobble one finds either in river beds, or in glacial moraines. In both cases, the flow of the water or ice rolls the rocks along until they become rounded.

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Interacting galaxies

9:02 am

Interacting galaxies
Click for full image.

The news is light this morning, so this cool image will be the first of three. The picture to the right, cropped and reduced to post here, was taken by the Hubble Space Telescope and released today. From the caption:

The two interacting galaxies making up the pair known as Arp-Madore 608-333 seem to float side by side in this image from the NASA/ESA Hubble Space Telescope. Though they appear serene and unperturbed, the two are subtly warping one another through a mutual gravitational interaction that is disrupting and distorting both galaxies.

I did a search for any research of this galaxy pair, and found that its identification was only part of a larger survey, with only a little research done on its spectroscopy. Thus, I can’t tell you the size or distance, or how far apart from each other these galaxies lie.

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Sunspot update: Activity again exceeds prediction but ramp up pauses

11:29 pm

NOAA this weekend published, as it does at the start of every month, its October update of its monthly graph that tracks the number of sunspots on the Sun’s Earth-facing hemisphere. As I have done since I started this website in 2011, I have published that graph below, with some additional details added to provide context.

An increase in sunspot activity in September wiped out the decline seen in August, so that the sunspot number in September once again matched or exceeded the numbers seen during the middle of the previous solar maximum from 2012 to 2014, a low period of activity between that maximum’s two peaks. Activity also continued to exceed the predictions of the panel of government solar scientists put together by NOAA.

At the same time, since May the ramp up to maximum has stalled, something I noted last month and has now become more evident.
» Read more

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India’s Mars orbiter mission ends after eight years

6:17 pm

After eight years in orbit around Mars, India’s Mars orbiter mission, Mangalyaan, has run out of fuel for controlling its orientation, ending its mission.

The Rs 450 crore Mars Orbiter Mission was launched onboard PSLV-C25 on November five, 2013, and the MOM spacecraft was successfully inserted into Martian orbit on September 24, 2014 in its first attempt. “Right now, there is no fuel left. The satellite battery has drained,” sources in the Indian Space Research Organisation (ISRO) told PTI. “The link has been lost”.

There was, however, no official word from the country’s national space agency, headquartered here.

During its mission it produced more than a thousand images, though the mission’s primary objective was technological, proving that India itself could design, build, launch, and manage a planetary mission to another world. For India, Mangalyaan was thus an unqualified success.

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Fabric debris spotted on Ingenuity during 33rd flight

10:19 am

Tattered fabric debris on Ingenuity's leg during flight
Click to see full movie of flight.

In reviewing the images from Ingenuity’s 33rd flight on September 24, 2022, engineers have spotted what looks like a tattered piece of fabric fluttering on the end of one of the helicopter’s legs, and then disappearing.

The image to the right, cropped, enhanced, and labeled to post here, comes from an animation created from all images taken during the flight.

A small piece of foreign object debris (FOD) was seen in footage from the Mars helicopter’s navigation camera (Navcam) for a portion of its 33rd flight. This FOD was not visible in Navcam footage from the previous flight (32). The FOD is seen in Flight 33 Navcam imagery from the earliest frames to approximately halfway through the video, when it fell from the leg and drifted back to the Mars surface.

The engineers do not yet know what this was, but it apparently caused no harm to the helicopter. It also is likely not from either Ingenuity or Perseverance, as both are functioning perfectly. Most likely it is a piece of the parachute used during landing and then ejected.

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Head of Commerce’s space office questions new FCC regulations on space junk

10:00 am

Turf war! At a conference yesterday Richard Dalbello, director of the Office of Space Commerce at the Commerce Department, strongly questioned the FCC’s legal authority for its just passed new regulation on the de-orbiting of space junk.

“I think the FCC, for their part, has pushed the boundaries of their authorities pretty aggressively,” he said when asked about what agency should have oversight for issues like that, as his office works to create a civil space traffic management capability. “Although I certainly congratulate them on the depth of their intellectual work,” he said of the FCC and its new order, “a lot of the things that they articulated are probably, arguably, outside their job jar.”

Dalbello’s comments only add to the many turf wars going on in the DC swamp over space regulation. Some in Congress want all space regulation to shift to his office. Others want it to be distributed across a number of agencies in both the military and civilian bureaucracies.

Regardless, Dalbello’s office is the agency that might actually have the legal authority for regulating space junk. And it is certain that the FCC does not have it.

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NASA now aiming for SLS launch in November

1:52 am

In finding that Hurricane Ian caused little damage at its vehicle assembly building at Kennedy, NASA managers have decided to target the the November 12 to 27 launch window for the first launch of its SLS rocket.

According to this graph [pdf], November 27th is the only date that will provide NASA with the longest mission for Orion (38 to 42 days). Furthermore, the mission precludes launches on November 13, 20-21, and 26.

Expect them to aim for November 12th, even though that will result in an Orion mission only 26 to 28 days long.

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Firefly successfully completes first orbital launch of its Alpha rocket

12:19 am

Alpha 1:48 into flight

Capitalism in space: Firefly, a company that just two years ago had gone into bankruptcy, tonight successfully launched their new Alpha rocket into orbit on its second test launch. The screen capture to the right shows the rocket 1:48 minutes into flight, its first stage still firing.

A final 2nd stage engine burn has completed, and we now have confirmation of deployment of the payload satellites. My sources tell me that the second stage under-performed, putting the satellites into a 223x283km orbit, rather than the planned 300km orbit, which will shorten the lifespan of the smallsats. As this was a test launch, not an operational one, this issue does not to my mind make the launch a failure.They reached orbit and the satellites were successfully deployed.

Thus, Firefly now joins SpaceX, Rocket Lab, ULA, Virgin Orbit, and Northrop Grumman as an operational American commercial rocket companies. Astra had been operational, but it has stepped down as it builds a new rocket.

The leaders in the 2022 launch race:

43 SpaceX
41 China
12 Russia
7 Rocket Lab
6 ULA

American private enterprise now leads China 61 to 41 in the national rankings, and is tied with the entire world combined, 61 to 61.

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Watching Firefly’s next attempt to launch tonight

8:55 pm

Firefly will try again to complete the first successful launch of its Alpha rocket tonight from Vandenberg Space Force Base.

Last night they attempted twice to launch, the first aborting about 4 minutes before launch, the second aborting at T-0, with the first stage engine’s actually igniting and then shutting down.

I have embedded the live stream below. The launch window opens at 12:01 am (Pacific) and lasts two hours, giving them time for at least two launch attempts, should an abort occur on the first attempt.

» Read more

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September 30, 2022 Quick space links

3:49 pm

Courtesy of BtB’s stringer Jay, who trolls Twitter so I don’t have to.

A robot arm made the move at China’s Tiangong-3 space station. Wentian docked at the main port, so that it sat in a straight line with the Tianhe main module. Moved to the side, the station is now in an L-shape, so that Mengtian can dock with that center port. Once docked, the same robot arm will shift it to the port opposite Wentian, so that the station is T-shaped.

The drop zone for the Long March 5B’s solid boosters is in the ocean, to the southwest of the Philippines. The core stage of course will reach orbit, and unless something as changed (unlikely), will crash uncontrolled somewhere on Earth within a week of launch.

The money will buy for two satellites that the Russians are presently contracted to launch, but will not due to sanctions. Reports suggest South Korea is talking to either SpaceX or Arianespace, but only SpaceX could do the launch at this low price.

This bank’s approval was probably encouraged by several recently won contracts by Astroscale.

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A look back at Virgin Galactic’s failed history

10:25 am

Link here. Doug Messier has probably provided the best news coverage of every up and down (mostly down) of Virgin Galactic since its beginning. As he notes at the beginning of his article:

A lot can happen in 18 years.

A mother can go from holding her newborn baby in her arms to sending her child off the college for the first time. In between, the child has learned to walk and talk, endured the rigors of puberty, and spent at least 13 years in school.

During that same time, Virgin Galactic essentially accomplished nothing, while wasting billions in private investment capital. Meanwhile, Richard Branson pumped and dumped, getting out when the getting was good and leaving others to hold the bag.

Definitely worth the read. The story of Virgin Galactic demonstrates the risks inherent in capitalism and freedom. Freedom allows for big dreams, but before you commit to any dream you better look it over very carefully or you might be burned.

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FCC approves new regulation requiring defunct satellite deorbit in five years

10:13 am

Despite questions from Congress and others about the agency’s legal authority to do so, the FCC yesterday approved a new regulation that will require satellite companies to de-orbit defunct satellites within five years, shortening the rule from the previous requirement of 25 years.

Commissioners voted 4-0 to adopt the draft rule, published earlier this month, intended to address growing debris in LEO. Under the new rule, spacecraft that end their lives in orbits at altitudes of 2,000 kilometers or below will have to deorbit as soon as practicable and no more than five years after the end of their mission. The rule would apply to satellites launched two years after the order is adopted, and include both U.S.-licensed satellites as well as those licensed by other jurisdictions but seeking U.S. market access.

The article notes how this rule replaces “a longstanding FCC guideline” Note the difference. Previously the FCC had made a recommendation, recognizing it did not have the authority to impose it. Now, our power-hungry DC bureaucracy has decided it can ignore the law and impose any rule it desires. Nor does it feel it needs to listen to Congress, one committee of which sent a stern letter recently questioning the then proposed new rule and calling for the FCC to hold off any action on it while elected officials review the situation.

The FCC yesterday responded, essentially telling Congress to bug off.

None of these questions have anything to do with whether this rule makes sense. It likely does, but that still doesn’t give FCC officials to right to arbitrarily give themselves more power. Whether our elected officials will act to defend their own power is uncertain, as the pattern in the past half century is for Congress to consistently cede its power to the bureaucracy, whenever challenged.

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NASA releases first Juno image from the first close fly-by of Europa in decades

10:00 am

First released Juno image of Europa
Click for full image.

Kevin Gill's processed Juno image of Europa
Click for full image.

NASA yesterday released the first image from the successful close fly-by by Juno of Jupiter’s moon Europa since the 1990s. That photo, reduced and sharpened, is above.

The first picture NASA’s Juno spacecraft took as it flew by Jupiter’s ice-encrusted moon Europa has arrived on Earth. Revealing surface features in a region near the moon’s equator called Annwn Regio, the image was captured during the solar-powered spacecraft’s closest approach, on Thursday, Sept. 29, at 2:36 a.m. PDT (5:36 a.m. EDT), at a distance of about 219 miles (352 kilometers).

This is only the third close pass in history below 310 miles (500 kilometers) altitude and the closest look any spacecraft has provided at Europa since Jan. 3, 2000, when NASA’s Galileo came within 218 miles (351 kilometers) of the surface.

Meanwhile, the raw images have been pouring in, and citizen scientists have been quickly processing them. The photo to the right is only one example, created by Kevin Gill. I have cropped it to show one section in full resolution.

Expect many more processed images, especially those taken at closest approach, in the coming days.

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SpaceX and Jared Isaacman offer private mission to NASA to raise Hubble’s orbit

9:44 am

Capitalism in space: In a press release issued yesterday, NASA revealed that it has signed an unfunded agreement with SpaceX and Jared Isaacman’s Polaris program (which has purchased a series of manned missions on Dragon) to study the possibility of sending one of those private manned missions to the Hubble Space Telescope to raise its orbit.

SpaceX – in partnership with the Polaris Program – proposed this study to better understand the technical challenges associated with servicing missions. This study is non-exclusive, and other companies may propose similar studies with different rockets or spacecraft as their model.

Teams expect the study to take up to six months, collecting technical data from both Hubble and the SpaceX Dragon spacecraft. This data will help determine whether it would be possible to safely rendezvous, dock, and move the telescope into a more stable orbit.

In my book describing the history of the people who created Hubble, The Universe in a Mirror, I repeatedly noted how throughout its history people have tried to kill it, first in the design phase, then in the budget, then during construction, then after it was launched and the mirror was found to be ground incorrectly, and then after the Columbia accident when NASA management tried to cancel its last shuttle servicing mission.

Every attempt failed. As I have noted in that book and many times since its publication, Hubble is a telescope that will not die. NASA has for years intended to launch a mission to de-orbit it when its orbit had decayed enough that it was unstable. I’ve always said that when that time came, someone would propose and push for a mission to instead raise that orbit.

That prediction is now coming true. Though no robot arm exists yet for Dragon to use to grab Hubble in any rendezvous attempt, creating one is hardly difficult. At that point raising the telescope’s orbit becomes relatively trivial.

Whether such a mission could do more, such as replace Hubble’s ailing gyroscopes, is unknown. It would be foolish however not to review that possibility as well.

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Firefly to try again to complete first launch of its Alpha rocket

8:14 pm

UPDATE: After a first abort about T-minus 4 minutes at around midnight, the launch team quickly recycled for a new launch at 12:52 am. At T-0 the rocket then aborted at launch.

There is still more than an hour in the launch window, so assuming they can rapidly pin down the cause of the abort, another attempt is possible, though unlikely. CONFIRMED: They will try again tomorrow, with the same launch window.

Though frustrating, these repeated launch attempts are actually wonderful real time training for Firefly’s launch team. The rocket is still in good condition, and they get to practice analyzing a situation under pressure and acting quickly to move forward.

Capitalism in space: Firefly will once again attempt to complete the first successful launch of its Alpha rocket tonight, with the launch scheduled for 12:01 am (Pacific) from Vandenberg Space Force Base. The launch window lasts two hours, so if they have an abort for a minor fixable reason there is a good chance they will still be able to cycle around and try again.

I have embedded below the live feed from Everyday Astronaut, which begins at around 10 pm (Pacific), two hours before the launch.

This will be their second attempt, with the first failing one year ago when one engine in the first stage shut down prematurely due to a loose connection. They attempted to launch this second rocket for the first time earlier this month, but had to scrub due to weather.

The rocket carries five small satellites, including one, Serenity, that was built by BtB reader (and supporter) Joe Latrell, builder of cubesats in a shop behind his garage.
» Read more

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September 29, 2022 Quick space links

5:12 pm

Courtesy of BtB’s stringer Jay.

The video was actually posted by ULA CEO Tory Bruno. Blue Origin then reposted it. As one commenter there said, “I bet if @torybruno hadn’t posted it, you’d never have posted it.”

The test looked good, but ULA still needs two flight engines, and only has one so far.

Jay jokes, “Free little red books if you dress like Mao.”

This might even be true, simply because China’s labor costs are so tiny compared to the U.S. Sometimes those labor costs are even free (since China does use slave labor).

I wonder if UC-San Diego will also require Sierra Space to segregated astronauts by race, as it does on its campus.

The goal is to eventually launch a 50 satellite constellation to provide 5G to its cell phone customers.

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Lunar mountains and wrinkle ridges

12:13 pm

Montes Recti on the Moon

Cool image time! The photo above, taken by Lunar Reconnaissance Orbiter (LRO), was released today by the orbiter’s science team, and provides us an oblique look at the mountains dubbed Montes Recti (lower right) and the wrinkle ridges near them (lower left). The highest point in this mountain range is about 5,900 feet high.

The image looks west across the northern part of the mare region dubbed Mare Imbrium, the dark area on the Moon’s visible hemisphere near its top. In the distance can be the mountains that form part of mare’s rim. The rounded peak in the top right is Promontorium Laplace (about 8,530 feet high). It is named this because it projects out (a promontory) into the mare a considerable distance from the rim. The crater at top center is Laplace D. As for the wrinkle ridges, the scientists describe them like so:

Tectonic landforms are those formed by forces that act to either contract or pull apart crustal materials. These forces develop faults or breaks in the crustal materials, and movement or slip along the faults form either positive or negative relief landforms. On the Moon, positive relief contractional landforms are the most common. The most significant contractional landforms on the Moon are wrinkle ridges, found exclusively in the dark mare basalts.

Essentially, something caused the ground to contract, which caused it to break at these ridges and be forced upward.

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Jupiter’s north pole cyclones appear as stable as those at the south pole

11:26 am

The northern polar cyclones of Jupiter
Click for original figure.

In reviewing five years of data from Juno, scientists now conclude that the polygon of large storms surrounding Jupiter’s north pole appear as stable as the same poloygon of storms found at the south pole.

Each polygon is made up of a central polar cyclone (PC) surrounded by a number of circum-polar cyclones (CPC). The image to the right, Figure 1 from the paper, compares the north polar storms from 2017 (top) to 2022 (bottom). During the five years of observations the whole polygon “rotated approximately 15° westward,” though it essentially maintained its structure.

After 5 years, the 8 + 1 North PCs structure and the 5 + 1 South one show very small changes; the lifetime of a single cyclone is therefore longer than 25 years and possibly longer than 75 years. Also, single cyclones have their peculiar morphology and this is often retained after 5 years, both in radiance and in morphology. In particular, this is the first time that we can observe the North CPCs system since the discovery in 2017, and we find that the structure is almost unperturbed.

The question that appears to remain unanswered by this data is whether these storms are deep-rooted to the interior of Jupiter or shallow structures. The stability suggests the latter, but this remains unproven.

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Chang’e-5 samples suggest lunar meteorite impacts took place the same time as big Chicxulub impact

10:23 am

In analyzing lunar samples brought back by China’s Chang’e-5 Moon lander, Australian scientists have found evidence of lunar meteorite impacts that apparently took place the same time as big Chicxulub impact in the Yucatan 66 million years ago, thought by many scientists to have caused the extinction of the dinosaurs.

Their findings suggest that the frequency of meteorite impacts on the Moon may have been mirrored on Earth, and that major impact events on Earth were not stand-alone events and instead were accompanies by a series of smaller impacts. The study has been published in Science Advances.

“We combined a wide range of microscopic analytical techniques, numerical modelling, and geological surveys to determine how these microscopic glass beads from the Moon were formed and when,” says lead author Professor Alexander Nemchin, from the Space Science and Technology Centre (SSTC) in the School of Earth and Planetary Sciences at Curtin University in Perth.

The data suggests two possibilities, neither of which is confirmed. First, the impacts could have occurred because a cluster of large objects hit both Earth and the Moon at the same time. Second, the impacts on the Moon could have been caused by objects thrown up from the Earth when the bigger impact occurred at Chicxulub.

Either way, the data suggests a greater and more complex interaction between events on the Earth and events on the Moon.

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SpaceX to upgrade 2nd Kennedy launchpad for manned launches

10:13 am

In order to create some increased redundancy, SpaceX and NASA have agreed to upgrade the company’s second launchpad at Cape Canaveral, LC-40, so that both it and pad LC-39A can launch manned Dragon capsules.

This plan grew out of concern by NASA that the new Starship orbital launchpad was too close to LC-39A, and could possibly damage it during a launch. Should that happen, and no back-up launchpad was available, the agency would have no way to get astronauts up to ISS, since Boeing’s Starliner is not yet operational. Because of that concern, NASA made it clear that no Starship launches could occur in Florida until this issue was resolved.

The solution? Make LC-40 a manned launchpad too.

Nothing is known about the nature of the modifications that LC-40 will require. But more likely than not, NASA will require SpaceX to develop something similar to Pad 39A’s facilities. That would involve building a new crew access tower, crew access arm, escape system (39A uses baskets and ziplines), and an on-site bunker for astronauts.

It is also likely that no Starship launches at Kennedy will occur until this work is done and a manned launch from LC-40 takes place. Though this could delay Starship somewhat, I expect not significantly. Before SpaceX is ready to launch operationally in Florida, it still has to do a lot of testing and development of Starship/Superheavy in Boca Chica, work that could take several years. I also suspect that it will get the launchpad work done relatively quickly, especially if NASA agrees to pay for it.

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Initial Webb results revised because telescope wasn’t yet fully calibrated

10:02 am

The uncertainty of science: Though it appears that no results will have to be abandoned, the scientists who published some of the very first results from the Webb Space Telescope have been scrambling to adjust and revise their papers because the telescope is only now getting fully calibrated.

“This caused a little bit of panic,” says Nathan Adams, an astronomer at the University of Manchester, UK, who, along with his colleagues, pointed out the problem in a 9 August update to a preprint they had posted in late July3. “For those including myself who had written a paper within the first two weeks, it was a bit of — ‘Oh no, is everything that we’ve done wrong, does it all need to go in the bin?’”

To try to standardize all the measurements, the STScI is working through a detailed plan to point Webb at several types of well-understood star, and observe them with every detector in every mode for every instrument on the telescope4. “It just takes a while,” says Karl Gordon, an astronomer at the STScI who helps lead the effort.

In the meantime, astronomers have been reworking manuscripts that describe distant galaxies on the basis of Webb data. “Everyone’s gone back over and had a second look, and it’s not as bad as we thought,” Adams says. Many of the most exciting distant-galaxy candidates still seem to be at or near the distance originally estimated. But other preliminary studies, such as those that draw conclusions about the early Universe by comparing large numbers of faint galaxies, might not stand the test of time. Other fields of research, such as planetary studies, are not affected as much because they depend less on these preliminary brightness measurements.

Overall, it does not appear the more precise calibrations will change much of signficance, since most of the earliest observations were simply that, observations, not theoretical. Because the distance estimates remain largely unchanged however the theorists are left with the same conundrum: The age and apparent nature of the most distant objects does not seem to fit with what the theories had predicted Webb would see.

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Hubble & Webb make first coordinated observations, tracking DART impact of Dimorphus

9:50 am

Webb and Hubble together look at DART impact of Dimorphus
Click for full image.

For the first time scientists have used both the Hubble Space Telescope and the James Webb Space Telescope to observe the same astronomical event, in this case the impact of the DART spacecraft on the asteroid Dimorphus on September 26, 2022.

The two images to the right show the asteroid several hours after impact. Both telescopes also captured images before the impact as well. From the press release:

Observations from Webb and Hubble together will allow scientists to gain knowledge about the nature of the surface of Dimorphos, how much material was ejected by the collision, and how fast it was ejected. Additionally, Webb and Hubble captured the impact in different wavelengths of light – Webb in infrared and Hubble in visible. Observing the impact across a wide array of wavelengths will reveal the distribution of particle sizes in the expanding dust cloud, helping to determine whether it threw off lots of big chunks or mostly fine dust. Combining this information, along with ground-based telescope observations, will help scientists to understand how effectively a kinetic impact can modify an asteroid’s orbit.

When Webb was first conceived in the late 1990s, it was exactly for this reason, to combine Hubble’s optical vision with Webb’s infrared view. Though more than a decade late, it has finally happened.

It will be months before scientists begin to decipher the data produced by all the telescopes and spacecraft used to observe the DART impact. What we are seeing now are merely hints at what has been learned.

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Astra’s last rocket failure pinpointed to upper stage engine

9:33 am

Astra has determined that the launch failure in June 2022 was because the upper stage engine of its Rocket 3.3 rocket was burning fuel faster than it was supposed to.

“We’ve determined that the upper stage shut down early due to a higher-than-normal fuel consumption rate,” the update reads. “We have narrowed the root cause to an issue with the upper stage engine. We have also completed many rounds of ground testing, including multiple tests that yielded results consistent with the failure condition in flight.”

When the failure happened, the company had quickly determined that the upper stage had shut down prematurely. The investigation has now determined that it had simply run out of fuel, because of that higher-than-intended burn rate.

While they say they will next institute corrective measures, that seems unlikely for this engine. In August Astra announced it would no longer launch Rocket 3.3, and was instead shifting to the development of a newer bigger rocket, Rocket-4. It now appears that decision was made based on the results of this investigation. The engine probably has fundamental issues that could not be resolved easily.

This decision to cease use of Rocket 3.3 essentially removed Astra as an operational rocket company. Whether the company can re-enter the launch market with a new rocket however remains very unclear.

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