Tag: spaceflight

Parker probe completes fifth Venus flyby

8:40 am

The Parker Solar Probe on October 16th successfully completed its fifth flyby of Venus, designed to lower its solar orbit around the Sun.

At just after 5:30 a.m. EDT, moving about 15 miles (24 kilometers) per second, the spacecraft swooped 2,370 miles (3,814 kilometers) above Venus’ surface. Such gravity assists are essential to the mission to bring Parker Solar Probe progressively closer to the Sun; the spacecraft counts on the planet to reduce its orbital energy, which in turn allows it to travel closer to the Sun and measure the properties of the solar wind near its source.

This was the fifth of seven planned Venus gravity assists. The flyby reduced Parker Solar Probe’s orbital speed by about 6,040 miles per hour (9,720 kilometers per hour), and set it up for its 10th close pass (or perihelion) by the Sun, on Nov. 21.

Parker Solar Probe will break its own distance and speed records on that closest approach, when it comes approximately 5.3 million miles (8.5 million kilometers) from the Sun’s surface — some 1.2 million miles (1.9 million kilometers) closer than the previous perihelion on Aug. 13 – while reaching 101 miles (163 kilometers) per second, or 364,621 miles per hour. Assisted by two more Venus flybys, in August 2023 and November 2024, Parker Solar Probe will eventually come within 4 million miles (6.2 million kilometers) of the solar surface in December 2024.

That speed record, 364,621 miles per hour, is the fastest any human built object as ever traveled.

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Update on Lucy: panels generating more than 90% of expected power

9:38 pm

According the Lucy science team, the spacecraft’s solar panels are generating more than 90% of the expected power at this stage of the mission, despite the fact that one panel did not deploy completely and has not latched in final position.

“We’re very happy to report that we are getting most of the power we expected at this point in the mission,” said Joan Salute, associate director for flight programs at NASA’s planetary science division. “It’s not 100%, but it is fairly close. So that is great news.’

In an interview with Spaceflight Now, Salute said the power output from the solar arrays appears to be “most likely above 90%” of the expected level of 18,000 watts. “We don’t know if it’s a latch problem, or that it is only partially deployed,” Salute said.

If correct, there is an excellent chance the mission will not be seriously hindered, even if they cannot get the panel fully deployed or latched. At the same time, there are worries about firing Lucy’s main engine for major course corrections with the panel unlatched. The first major course correction is scheduled for mid-November.

The engineers are presently reviewing their data. One option might be to order the spacecraft to re-attempt a full deployment, in the hope that the process will complete during that second attempt.

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The icy Phlegra Mountains on Mars

1:37 pm

Overview map

Cool image time! The Phlegra Mountains on Mars are probably the iciest mountains on the red planet, something I noted previously in an April 2020 essay, highlighting a half dozen images from the high resolution camera on Mars Reconnaissance Orbiter (MRO) that showed that iciness. As I stated:

Here practically every photograph taken by any orbiter appears to show immense glacial flows of some kind, with some glaciers coming down canyons and hollows [#1], some filling craters [#2], some forming wide aprons [#3] at the base of mountains and even at the mountains’ highest peaks [#4], and some filling the flats [#5] beyond the mountain foothills.

And then there are the images that show almost all these types of glaciers, plus others [#6].

The overview map above not only shows the locations of these six images in black, it also shows in red two of SpaceX’s four prime candidate landing sites for its Starship spacecraft. Note that #3 above is one of those sites.

The white rectangle in the Phlegra Mountains marks the location of today’s cool image below, taken on June 11, 2021 by MRO’S high resolution camera.
» Read more

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Rocket Lab reschedules next launches

9:41 am

Capitalism in space: Rocket Lab has now announced that it has delayed its next two launches from mid-October to mid-November.

A two-week window is planned for the first launch — from Nov. 11 to Nov. 24 —when its Electron rocket will deploy two satellites into low-Earth orbit. The company aims to deploy two more satellites in the second launch for the mission after Nov. 27.

Both launches are scheduled to take place at the Rocket Lab Launch Complex 1 on New Zealand’s Māhia Peninsula.

The announcement does not provide an explanation for this delay. However, Rocket Lab had originally scheduled these launches for August/September, but lockdown restrictions in New Zealand due to its panic over COVID-19 had forced it to trim its launches there by half for the rest of the year. Rather than do five as planned, the company is only going to do two, and it appears those two are the launches now set for November.

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China gets failed satellite to proper orbit

9:19 am

A Chinese satellite launched in late September that failed to reach its designated orbit after deployment has now reached that correct orbit.

During the launch of the Chinasat 9A mission in June 2017, the Reaction Control System (RCS) of the rocket stopped working during the coast phase, which resulted in a sub-planned payload release. The satellite, however, used its onboard propulsion to reach the desired orbit even with the rocket underperforming.

In September the limited information released by China suggested the launch had been a success but the satellite failed after deployment. Based on this new information, the launch in September only became a success now, as the failure was in the rocket’s upper stage.

China has not revealed the purpose of this satellite, though it is part of a program known to launch satellites for testing cutting edge technology.

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NASA document: Starship orbital flight in March ’22

9:11 am

Starship orbital flight date?
Click for full image.

According to a NASA proposal to observe and measure the temperatures on Starship’s thermal protection during its return to Earth from orbit, that flight is now tentatively scheduled for March ’22.

The graphic to the right highlights the pertinent language in the poster presentation.

It must be noted that the poster might not be telling us when Starship will first launch, but when the designers of the camera system will be ready to film. The two are different. Still, the slowdown in flight testing at Boca Chica by SpaceX since July suggests there may be some truth to this date. That date also seems more reasonable now in connection with the FAA’s regulatory pace, which still needs to provide the final approval of SpaceX’s environmental reassessment of its Boca Chica launch site.

It also seems to me that the March ’22 date would be very convenient for NASA, as it almost certainly guarantees that Starship will reach orbit after SLS, thus avoiding for the agency a very big public relations embarrassment. I would not be surprised at all if the Biden administration and NASA’s top administrators, led by Bill Nelson, are purposely pressuring the FAA to make sure that Starship orbital flight is delayed until after the first SLS test flight, now expected in the January/February time frame.

There is also the possibility that SpaceX’s targeted launch dates were unrealistically optimistic. The company had a lot of work it needed to do prior to launch on its orbital launch facility at Boca Chica, and that work could not go forward while test flights and static fire tests were taking place. Pausing those tests has allowed the launch facility work to move forward aggressively.

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A Lucy solar panel on Lucy fails to latch properly after deployment

8:40 am

Partly deployed panel

Engineers at Lockheed Martin (the prime contractor) and Northrop Grumann (which built the panels) are now troubleshooting an issue with one of the solar panels on the asteroid probe Lucy, which failed to latch properly after deployment.

The NASA graphic to the right illustrates this issue, though the graphic might not accurately portray the exact circumstance at Lucy. To get more solar power, Lucy’s panels are larger, and thus were designed to unfurl like a fan rather than the more commonly used accordion design. One panel has not completed that unfurling.

NASA’s announcement tries to minimize the issue but this quote from the link makes it clear that this could be a very big problem.

It’s not yet clear whether the array in question is, in fact, fully deployed but not latched in place or whether it did not reach full deployment and is not generating the same amount of power as its counterpart. It’s also not yet clear whether Lucy can safely fire its maneuvering thrusters with an unlatched array.

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Monaco’s government establishes “Bureau of Space Affairs”

9:27 am

Capitalism in space: Monaco’s government announced this week that it has created a Bureau of Space Affairs, aimed at encouraging commercial space operations within the country.

By setting up a ‘one-stop-shop’ for aerospace-related matters, and reporting to the Digital Platforms and Resources Department (under the authority of the Minister of State), the Principality is taking its first steps towards supporting the growth and development of these companies by streamlining administrative procedures, and will also act as the welcome office for any prospective aerospace-related businesses looking to set up in Monaco.

At the international level, the Office of Space Affairs will represent the Princely Government in the relevant international organizations, in co-operation with the Department of External Relations and Cooperation. The Office of Space Affairs will interact with its counterparts in other countries for knowledge sharing, to foster economic cooperation, and to benefit Monegasque companies in aerospace and related fields.

Such government agencies are popping up in third world countries worldwide, with almost all having goals focused on helping and encouraging the booming private commercial marketplace and attracting it to their countries. This is great news.

That these countries are also competing worldwide for this business is also great news. It will discourage them from trying to take control, as government agencies are wont to do and as NASA did in the U.S. in the 1970s. Instead, the competition will force them all to keep their bureaucracies as streamlined as possible, so as to attract as many businesses as possible.

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Russian filmmakers safely return to Earth

11:59 pm

Capitalism in space: A Russian Soyuz capsule safely returned three Russian astronauts to Earth today, including the two filmmakers that spent the last twelve days filming scenes on ISS for a movie.

Russian actress Yulia Peresild and producer Klim Shipenko landed with cosmonaut Oleg Novitskiy of the Russian federal space corporation Roscosmos on Sunday (Oct. 17). The three descended aboard the Soyuz MS-18 spacecraft to a touchdown at 12:35 a.m. EDT (0435 GMT or 10:35 a.m. local time) on the steppe of Kazakhstan.

The landing concluded 191 days in space for Novitskiy, who wrapped up his stay on the station by playing a bit part in the movie Peresild and Shipenko were there to film. A joint production of Roscosmos, the Russian television station Channel One and the studio Yellow, Black and White, “Вызов” (“Challenge” in English) follows the story of a surgeon (Peresild) who is launched to the station to perform emergency surgery on a cosmonaut (Novitskiy).

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ULA’a Atlas-5 successfully launches the Lucy asteroid probe

6:08 pm

ULA’a Atlas-5 rocket early this morning successfully launched the Lucy asteroid probe on a 12 year mission to study eight Trojan asteroids over a period from 2025 to 2031. One tidbit about the mission is especially creative:

Scientists named the Lucy mission after the fossilized remains of a human ancestor, called Lucy by the scientists who discovered her in Ethiopia in 1974.

The leaders in the 2021 launch race:

36 China
23 SpaceX
17 Russia
4 Northrop Grumman
4 ULA

The U.S. and China are once again tied in the national rankings, at 36 each.

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Thrusters on Soyuz docked to ISS fire improperly

10:00 pm

The thrusters on the Soyuz capsule to be used to return the two filmmakers and one Russian astronaut back to Earth on October 17th would not stop firing when they were supposed to during routine testing in preparation for undocking.

From the NASA announcement, which by the way buried this event in the announcement’s eighth paragraph:

At 5:02 a.m. EDT today, Russian flight controllers conducted a scheduled thruster firing test on the Soyuz MS-18 spacecraft that is scheduled to return to Earth Saturday night with three crew members aboard. The thruster firing unexpectedly continued after the end of the test window, resulting in a loss of attitude control for the International Space Station at 5:13 a.m. Within 30 minutes, flight controllers regained attitude control of the space station, which is now in a stable configuration. The crew was awake at the time of the event and was not in any danger.

Flight controllers are continuing to evaluate data on the station’s brief attitude change due to the thruster firing. NASA and Roscosmos are collaborating to understand the root cause.

According to the first link, the thrusters tilted the entire station 57 degrees from its correct orientation.

Not only do they not know why the thrusters did not shut down when commanded, they do not know why they eventually stopped firing. They suspect it was because the thrusters ran out of fuel, but this is not yet confirmed.

The Russians still plan to use this Soyuz to return the film crew in two days. The story does not say whether these thrusters are needed in any way to deorbit the capsule.

That’s the second uncontrolled thruster firing from a Russian spacecraft docked to ISS in less than three months. Yet, no such thing had occurred for many decades prior to this. In fact, the last such events that I can remember occurred in the 1960s.

Why such events are suddenly occurring now with such frequency is very concerning, to put it mildly. It brings to my mind the drilled hole in an earlier Soyuz capsule, a hole that was clearly drilled in Russia when the capsule was on the ground and then covered up so it was not detected until the capsule was docked to ISS. The Russians investigated, said they solved the mystery, but have never told anyone what that solution was.

To paraphrase Shakespeare, something is very rotten in Roscosmos.

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Dry Martian chaos

1:52 pm

Dry chaos on Mars
Click for full image.

On Mars, one of the most common kinds of landscape is called chaos terrain. Made up of mesas, buttes, and cross-cutting random canyons, this geology is not seen on Earth, and when first identified by scientists in early orbital pictures in the 1970s, it baffled them. While it is clear that some form of erosion process caused it, the scientists did not have enough data then to figure out what that process was.

Today scientists have a rough theory, based on what they now know about Mars’ overall geology and its climate and orbital history. The canyons of chaos terrain were originally fault lines where either water or ice could seep through and widen. See this January 2020 post for a more detailed explanation.

Most of the cool images I have posted of chaos terrain have been in places in the mid-latitudes that are covered with glaciers. See for example this December 2019 post of one particular mesa in glacier country, with numerous glaciers flowing down its slopes on all sides. That mesa is quite typical of all such mesas in the mid-latitudes.

Today’s cool image above, cropped to post here, takes us instead to the Martian very dry equatorial regions. The photo was taken on May 17, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and like mid-latitude chaos, it shows a collection of random mesas with canyons cut almost randomly between.

Unlike the mid-latitudes, however, there is no evidence of glaciers here. Instead, the canyons and mesa slopes are covered with dust, shaped into wind-blown dunes.

As always, the overview map below gives us some context.
» Read more

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China successfully launches three astronauts to its space station

9:36 am

Launch of Shenzhou

The new colonial movement: China today successfully used its Long March 2F rocket to place three astronauts into orbit to begin a six month mission to that country’s new space station.

The image to the right is a screen capture from the live stream, mere seconds after launch.

It appeared to me that the rocket’s first stage might have had grid fins to control its reentry, but I am not certain. Either way both it and the four strap-on boosters will crash in China.

The Shenzhou capsule will dock with the station in a few hours.

The leaders in the 2021 launch race:

36 China
23 SpaceX
17 Russia
4 Northrop Grumman

China has now moved ahead of the U.S. in the national rankings, 36 to 35.

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FAA announces details for SpaceX Boca Chica environmental public hearings

9:20 am

Capitalism in space: The FAA today announced the details for attending its public hearings about the new environmental assessment it wishes to issue for SpaceX’s Starship/Superheavy operations in Boca Chica, Texas.

The hearings will be on Monday, October 18, 2021, 5:00 p.m. (Central Time) and Wednesday, October 20, 2021, 5:00 p.m. (Central Time). Both will be virtual. If you want to participate you need to register first and follow these instructions:

VIRTUAL PUBLIC HEARING REGISTRATION: Please register to attend a virtual public hearing and indicate if you would like to provide an oral comment:

http://spacexbocachicapublichearings.eventbrite.com/?s=144095269

VIRTUAL PUBLIC HEARING INSTRUCTIONS: Connect using the Zoom link below. https://us02web.zoom.us/j/88394232774 Password: FAA2021 Please only use the telephone number provided below if you are not going to connect using the Zoom Link. 1-833-548-0276 Meeting ID: 883 9423 2774 Meeting Password: 4300505

ONLINE MEETING TIPS: Prior to the meeting, please access the Zoom link above and download any needed software. This may take a few minutes, so it is best to download software in advance of the meeting. When logging-on to the meeting, please indicate your organization name in parentheses after your last name, if you represent one. If you registered to speak, this is how you will be identified during the meeting. Please also provide your email address. All lines will be muted during the meeting. To hear audio when connecting through the Zoom link, please make sure the volume on your computer speakers is on and that you do not have any programs with audio features (e.g., Skype, Spotify, YouTube) open that may interfere with the online meeting audio.

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High altitude tourist balloon company, Space Perspective, raises $40 million

9:12 am

Capitalism in space: The Florida-based high altitude tourist balloon company, Space Perspective, has successfully secured $40 million in investment capital funding, which the company says will be sufficient for them to begin flights by 2024.

Unlike other space-tourism companies, Space Perspective isn’t relying on rockets to send passengers to space. Instead, it will use a balloon to carry its roomy pressurized “Spaceship Neptune” capsule up to 100,000 feet before gently coming back down to Earth and splashing down in the Gulf of Mexico.

Each trip is expected to last about six hours with about two hours at the 100,000-foot mark.

They say their ticket price will be $125,000, which is far less than the suborbital space missions of Blue Origin or Virgin Galactic, but significantly more than the $50,000 that the other U.S. high altitude balloon company, Arizona-based Worldview, says it will charge for similar flights.

Nonetheless, the company’s CEO says they have already booked 25 flights.

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Watch launch of next crew to Chinese space station

9:00 am

I have embedded the live stream of today’s launch of three astronauts to China’s space station, presently being assembled in orbit. This crew’s mission is planned for six months. More details here. From China’s state-run press is this description of the planned tasks during the mission, including two or three spacewalks as well as the addition of two more large modules to the station.

Liftoff is set for 12:23:44 p.m. (Eastern).

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Virgin Galactic delays next Unity suborbital flight until next year

12:18 am

Capitalism in space: Virgin Galactic announced today that it is delaying its next Unity suborbital manned flight until next year so that it can first complete a planned maintenance inspection and overhaul of both Unity and its carrier airplane WhiteKnightTwo.

The company said Oct. 14 that it decided to move directly intended a planned maintenance period after a recent lab test of materials used on the vehicles “flagged a possible reduction in the strength margins of certain materials used to modify specific joints” that “requires further physical inspection.”

…That decision means that the company will delay Unity 23, a mission for the Italian Air Force that had been scheduled for as soon as mid-October, until after the maintenance period is completed next year. That flight had been previously scheduled for late September or early October but postponed to look into a potential manufacturing defect with a component in a flight control actuation system.

The endless delays at Virgin Galactic, stretching out now for almost fifteen years, threaten this company’s competitive standing. With Blue Origin now apparently able to fly commercially and regularly, one wonders why anyone would risk flying on Unity. Of course, people will, once the ship is cleared for commercial flights, but right now the price will likely have to be less than what Blue Origin is charging to garner business.

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China launches eleven satellites on Long March 2D rocket

12:08 am

China today launched eleven satellites using its Long March 2D rocket, with the primary payload a solar observation telescope, designed to observe the Sun in the hydrogen-alpha wavebands.

The hydrogen-alpha wavelength is deep red and is centered at 656.28 nanometers – for comparison, visible light runs from 400 to 700 nanometers. Observing the Sun at the hydrogen-alpha wavelength can reveal structures, evolution, and dynamic processes associated with solar flares and filaments. Hydrogen-alpha observations can also reveal solar wave phenomena, which are precursors to coronal mass ejections, and the dynamics of activity in the Sun’s lower atmosphere.

The rocket’s first stage was also equipped with grid fins similar to those used on SpaceX’s Falcon 9. Their goal at this time is simply to more precisely guide that expendable first stage back to its drop zone in the interior of China, thereby preventing it from crashing into habitable areas.

The leaders in the 2021 launch race:

35 China
23 SpaceX
17 Russia
4 Northrop Grumman

The U.S. and China are now tied at 35 successful launches in the national rankings. With three more launches expected in the next three days, one by China and two by the U.S., expect these numbers to rise quickly.

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Hubble data detects persistent water vapor on one of Europa’s hemispheres

1:30 pm

Using data from the Hubble Space Telescope spanning sixteen Earth years, scientists have detected the presence of water vapor on Europa, but strangely spread only across one of the moon’s hemispheres.

Previous observations of water vapor on Europa have been associated with plumes erupting through the ice, as photographed by Hubble in 2013. They are analogous to geysers on Earth, but extend more than 60 miles high. They produce transient blobs of water vapor in the moon’s atmosphere, which is only one-billionth the surface pressure of Earth’s atmosphere.

The new results, however, show similar amounts of water vapor spread over a larger area of Europa in Hubble observations spanning from 1999 to 2015. This suggests a long-term presence of a water vapor atmosphere only in Europa’s trailing hemisphere – that portion of the moon that is always opposite its direction of motion along its orbit. The cause of this asymmetry between the leading and trailing hemisphere is not fully understood.

First, it must be emphasized that the amounts of atmospheric water being discussed are tiny, so tiny that on Earth we might consider this a vacuum.

Second, that the water vapor is only seen on the trailing hemisphere suggests there is some sort of orbital influence involved, though what that influence is remains unknown.

Hopefully when Europa Clipper finally arrives in orbit around Jupiter in 2030, with a path that will fly past Europa fifty times, we will some clarity on these questions.

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A gecko on Mars

12:24 pm

Gecko on Mars
Click for full image.

Today’s cool image is also today’s picture of the day from the science team of the high resolution camera on Mars Reconnaissance Orbiter (MRO. That picture, rotated, cropped, and reduced to post here, can be seen to the right. As the caption authors Sharon Wilson and Sarah Sutton write:

The smooth volcanic surfaces in the Gordii Fossae region are sometimes interrupted by long, narrow troughs, or fissures. These fissures form when underground faults, possibly involving magma movement, reach the near-surface, allowing material to collapse into pits or an elongated trough. This fissure appears to have erupted material that flowed onto the surface.

If you use your imagination, this trough resembles a gecko with its long tail and web-shaped feet!

This impression is even more evident in the wider image taken by MRO’s context camera below.
» Read more

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Shatner vs today’s America

9:17 am

Shatner vs everyone else
Shatner, on the left, turns away from Bezos and the spray of champagne.

Capitalism in space: The profound, emotional, and thoughtful reaction of William Shatner to his short suborbital flight yesterday on Blue Origin’s New Shepard space capsule contrasted starkly with the crass, rude, and shallow response of his co-passengers and Jeff Bezos.

You can watch Shatner’s comments right after landing at the video at the link. Watch how he tries to express his thoughts to Bezos immediately, and is almost ignored as Bezos and the others instead want to spritz champagne at each other. Shatner turns away, almost in disgust. The screen capture to the right shows him turning away, not because he doesn’t want to be hit by champagne but because he doesn’t want that shallowness to steal from him the emotions he now feels.

Eventually Bezos realizes Shatner is going to say his peace, and that he better pay attention. Shatner, almost in tears, struggles to note how shocked he was at the relative thinness of the atmosphere. To him, the rocket so quickly zipped out of a blue sky into blackness. As he said,

“This air, which is keeping us alive, is thinner than your skin. It’s a sliver. It’s immeasurably small when you think in terms of the universe.

…”What you have given me is the most profound experience I can imagine. I’m so filled with emotion about what just happened … it’s extraordinary. I hope I never recover, that I can maintain what I feel now. I don’t want to lose it. It’s so much larger than me and life.”

Shatner is an actor. For him, the emotion is the most important thing, as that is what he has specialized in expressing on screen to others for his entire life. At this moment, however, he was not expressing the emotions of a imaginary character he was creating on screen, but his own personal emotions. He managed to do it, in the best way possible. God speed William Shatner. We shall miss you when you are gone.

That Bezos was so unprepared for this moment from Shatner was very unfortunate. It made him look very shallow and foolish, which is a shame because, as Shatner so correctly noted, Bezos was the one who made that moment possible.

Shatner, at ninety years of age, is of a different more civilized generation that believed strongly in applying thought to one’s emotions, rather than letting those emotions rule. The contrast between him and all the younger people in this clip gives us a clear snapshot of an America now gone, replaced by the thoughtless emotional America of today.

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Russia launches another 36 OneWeb satellites

8:37 am

A Russian Soyuz-2 rocket today successfully launched 36 more OneWeb satellites, raising the total of the satellite constellation in orbit to 358.

The launch was from Russia’s new spaceport Vostochny. As with all launches from Russia, the expendable first stage core and strap-ons landed inside Russia within designated drop zones. And as usual, no word from Russia on whether they landed on anyone’s head.

The leaders in the 2021 launch race:

34 China
23 SpaceX
17 Russia
4 Northrop Grumman

The U.S. still leads China in the national rankings, 35 to 34. With launches scheduled by both countries (two by the U.S. and one by China) over the next three days, these numbers will continue upward.

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Webb telescope finally arrives at launch site in French Guiana

2:54 pm

Webb deployment

After almost twenty years of construction (a decade behind schedule) and a cost of $10 billion, ($9.5 billion over budget), the James Webb Space Telescope today arrived at the processing facility at Arianespace’s French Guiana spaceport, where it will be prepared for a December 18, 2021 launch on an Ariane 5 rocket.

Once launched the telescope, which is not a replacement for Hubble because it observes in the infrared (not optical) and is optimized for deep space cosmology, will take two weeks to reach its orbital position about a million miles from Earth, as shown in the graphic.

Let us all cross our fingers and toes that it all works as designed, for if it doesn’t this will be the biggest failure ever in the history of NASA.

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Astronaut blood samples suggest long-term exposure to weightlessness causes brain damage

2:10 pm

New research comparing blood samples taken from five Russian astronauts before and after long term missions to ISS suggests that weightlessness can cause brain damage.

Published in JAMA Neurology, the new research looked at five male Russian cosmonauts. Each spent an average of 169 days in space. Blood samples were taken from each subject before leaving Earth, and then at three points after returning.

Five different blood-based biomarkers were measured, each known to correlate with some kind of brain damage. Three biomarkers in particular were found to be significantly elevated after the cosmonauts returned to Earth – neurofilament light (NfL), glial fibrillary acidic protein (GFAP), and a specific type of amyloid beta protein.

The researchers hypothesize the increases in NfL and GFAP levels may indicate a type of neurodegeneration called axonal disintegration. Elevated NfL levels are currently being investigated as a way of detecting the earliest stages of brain damage associated with Alzheimer’s disease.

It must be emphasized that the research did not find brain damage, only data within the blood samples that is often associated with brain damage. More research is required to determine if these biomarkers indicate the same thing in space as they do on Earth.

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Australia to build unmanned lunar rover for NASA

7:06 am

NASA and Australia have signed a deal whereby Australia will provide an unmanned lunar rover on which NASA will put its science instruments, with the package taken to the Moon by a commercial lander.

As part of the agreement, a consortium of Australian businesses and research organizations will develop a small rover that can operate on the lunar surface. The rover would have the ability to pick up and transfer lunar regolith (broken rock and dust) to a NASA-operated in-situ resource utilization (ISRU) system on a commercial lunar lander. Such a rover could fly to the Moon as early as 2026.

While this agreement helps widen the competition in the commercial unmanned planetary aerospace industry, it does so by helping the industry of another country. This policy fits the general philosophy of the Democratic Party and the Biden administration, which generally focuses on aiding other countries before the U.S.

Posted on the road to Phoenix.

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Watching the New Shepard suborbital flight with William Shatner

10:44 pm

I have embedded the live stream of the Blue Origin suborbital flight today of its New Shepard spacecraft, carrying four passengers including William Shatner.

The launch is presently scheduled for 7 am (Pacific). The live stream will start about 5:30 am (Pacific).

As I have noted previously, the announcers for Blue Origin tend to blather quite a bit, hyping the situation to a point of nausea. Hopefully during the flight they will shut up and allow the voices of the passengers to take center stage.

I meanwhile will be on the road during the flight. I will try to post updates as well as my normal news stories, but both might have to wait until I return home in the early afternoon. Regardless, the live stream is below for you to enjoy.

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Dusty chaos in Martian canyons

1:37 pm

Outcrops in dusty chaos on Mars
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on May 30, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the dusty dry floor of the chaos region of rough terrain in a side canyon of Valles Marineris, near its outlet. The color strip and the bright outcrops suggest that this terrain contains interesting minerals and resources. To determine exactly what those materials are however requires more information not available in this photo.

This ancient chaos terrain is the leftover eroded sea floor of a intermittent inland sea, leftover water from the catastrophic floods that are theorized to have flowed out of Valles Marineris and carved its gigantic canyons.

The overview map below shows this hypothesized sea.
» Read more

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Shetland spaceport gets 10-year launch contract from new British rocket company

8:50 am

Capitalism in space: The new spaceport in Shetland, Scotland, has signed a 10-year launch contract from the new British rocket company, Skyrora.

Rocket company Skyrora has agreed a multi-launch deal with the SaxaVord spaceport on Unst, the most northerly of the Shetland Islands, as it moves closer to launching its XL rocket in 2022. This is the first agreement Skyrora has made with a Scottish Spaceport. If successful, this could be the first rocket to go to space from the UK.

The deal with SaxaVord [the new name for the Shetland spaceport] will run for the next decade, giving Skyrora the ability to build towards its target of 16 launches a year by 2030.

The XL rocket is designed to launch smallsats, and will compete with companies like Astra and Rocket Lab. If Skyrora is success, it will not only be the first rocket to launch from the UK, it will be the first British-built rocket to launch since October 1971.

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Starship/Superheavy update

8:43 am

Link here. SpaceX is moving on several fronts in preparation for the next Starship/Superheavy tests:

  • Engines have been installed in Starship prototype #20 which will be tested this week
  • A new Raptor engine factory is under construction
  • Launch tower construction continued
  • Future prototypes continue to be built

Lots of details and videos at the link. Based on road closures, the prototype #20 static fire test will occur today, and will be the first such test on a Starship using orbital Raptor engines.

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Astra schedules next launch attempt

8:36 am

Capitalism in space: The new smallsat rocket company Astra has completed its investigation of its launch failure on August 28th and scheduled its next launch attempt for no earlier than October 27th.

During liftoff, kerosene fuel and liquid oxygen both leaked from the propellant supply system adjacent to the rocket. This system is designed to quickly disconnect and seal when the rocket launches. When LV0006 lifted off, these leaked propellants mixed and became trapped beneath the interface between the rocket and the ground equipment.

These mixed propellants were subsequently ignited by the exhaust of the first stage engines, which caused an over-pressurization that severed the electrical connection which controls the fuel pump. This caused the shutdown of one Delphin on the first stage less than one second after liftoff.

The company has revised its system to prevent further leaks, and shifted the fuel lines so that even if there is a leak, the propellants can no longer mix.

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