Tag: spaceflight

Sierra Space signs Mitsubishi as partner in private Orbital Reef space station project

8:57 am

Capitalism in space: Sierra Space has now partnered with Japan’s Mitsubishi for developing technology to be used on the private commercial Orbital Reef space station project.

The companies did not elaborate on the technologies they will consider for Orbital Reef under the agreement. MHI does have extensive experience in International Space Station operations as the manufacturer of the Kibo laboratory module, which was installed on the station in 2008. The company also built the HTV cargo spacecraft and H-2 launch vehicle that launched those spacecraft to the station.

…Sierra Space’s role in Orbital Reef includes providing inflatable modules called the Large Integrated Flexible Environment (LIFE) Habitat. The company’s Dream Chaser vehicle under development will transport cargo and crew to and from the station.

A consortium led by Blue Origin announced Orbital Reef last October. In addition to Blue Origin and Sierra Space, Boeing will provide a science module, CST-100 Starliner commercial crew vehicle and support for station operations, while Redwire Space will handle microgravity research and manufacturing, payload operations and deployable structures.

This deal suggests that the project wants more experience in its stable. Also, by partnering with Mitsubishi, it likely garners political support in Japan.

Leave a comment

Orbit Fab wins contract to outfit U.S. military satellites for refueling

8:48 am

Capitalism in space: Orbit Fab has won a $12 million contract to outfit U.S. military satellites with its refueling port.

The funding includes $6 million from the U.S. Air Force and U.S. Space Force, and $6 million from Orbit Fab’s private investors. The contract is for the integration of Orbit Fab’s fueling port, called RAFTI — short for rapidly attachable fluid transfer interface — with military satellites. The port allows satellites to receive propellant from Orbit Fab’s tankers in space.

At present there are no refueling missions scheduled, simply because the satellites that could be refueled are not yet in orbit. Orbit Fab and the military however are discussing an in-orbit demo mission.

Leave a comment

SLS arrives at launch site

8:43 am

NASA’s SLS rocket finally arrived at its launch site early this morning after an 11 hour journey on its mobile launcher from the Vehicle Assembly Building (VAB), in preparation for a dress rehearsal countdown on April 3, 2022.

The approximately two-day test will demonstrate the team’s ability to load cryogenic, or super-cold, propellants into the rocket, conduct a launch countdown, and practice safely removing propellants at the launch pad. After wet dress rehearsal, engineers will roll the rocket and spacecraft back to the Vehicle Assembly Building for final checkouts before launch.

The launch is presently scheduled for late May, but we must not be surprised if it is delayed to June, or July.

One comment

The world’s two biggest rockets move to their launchpads!

10:02 am

The real cost of SLS and Orion
The expected real per launch cost of SLS and Orion

The big news in the mainstream press today is the planned rollout from the Vehicle Assembly Building (VAB) of NASA’s SLS rocket this evening in preparation for its dress rehearsal fueling and countdown planned for April 3rd.

This article by Newsweek is very typical. It glows with facts lauding SLS’s gigantic size and the monumental systems designed to slowly transport it the four miles from the VAB to the launchsite.

At a height of 322 feet (ft), making it taller than the 305ft Statue of Liberty, the SLS will be the largest rocket to move to a launchpad since the Saturn V launched on its last mission in 1973, when it carried the Skylab space station into orbit around Earth. Its size has seen NASA dub it a Mega-Moon rocket.

NASA says that the four-mile journey from the Vehicle Assembly Building to the launch pad at NASA’s Kennedy Space Center in Florida, where the SLS was recently adorned with the NASA logo, will take between 6 and 12 hours. It will be carried on the back of NASA’s 6.6-million-pound crawler vehicle. [emphasis mine]

If that April 3rd countdown dress rehearsal goes well, SLS will be rolled back to the VAB and then prepped for its first launch, presently scheduled tentatively for May ’22, though more likely in June or July.

For NASA the rollout today is somewhat of a relief. SLS was originally supposed to launch in 2015, making it seven years behind schedule. It has also been enormously expensive, costing close to $30 billion to build, if one does not count the $20 billion cost of the Orion capsule it carries. That the agency finally has this rocket assembled and almost ready to launch, after so many delays and cost overruns, means that NASA might finally be able to prove it is a reality, not simply a boondoggle designed by Congress to funnel cash through NASA to their constituents.

The Newsweek article however strangely ignores the launchpad stacking of another equally gigantic rocket that occurred yesterday. » Read more

10 comments

NASA adds another antenna to its Deep Space Network

9:04 am

In its on-going project to upgrade and refurbish the antenna dishes of its Deep Space Network communications, used to communicate with planetary probes beyond Earth orbit, NASA yesterday announced that the fourth of six planned new antennas is now online in Madrid.

DSS-53 is the fourth of six antennas being added to expand the DSN’s capacity and meet the needs of a growing number of spacecraft. When the project is complete, each of the network’s three ground stations around the globe will have four beam waveguide antennas. The Madrid Deep Space Communications Complex is the first to have completed its build-out as part of project. Construction on DSS-53 began in 2016.

The Deep Space Network has needed an upgrade for about a decade, and has been especially under strain as the number of missions to Mars increased during that time. After many years of delay, almost all due to budget decisions by both NASA and Congress, the upgrade began in earnest in 2016.

Leave a comment

China launches military reconnaissance satellite

8:48 am

China today successfully launched its second Yaogon military reconnaissance satellite, using its Long March 4C rocket.

The leaders in the 2022 launch race:

10 SpaceX
6 China
2 ULA
2 Russia

The U.S. lead over China in the national rankings is now 16 to 6. Note too that tomorrow Russia is scheduled to launch another crew to ISS, using its Soyuz-2 rocket, while SpaceX plans another Starlink launch.

One comment

Alignment of segments in Webb’s primary mirror completed

3:06 pm

Alignment image
Click for full image.

Astronomers and engineers have now successfully completed the alignment of the eighteen segments in the primary mirror of the James Webb Space Telescope.

On March 11, the Webb team completed the stage of alignment known as “fine phasing.” At this key stage in the commissioning of Webb’s Optical Telescope Element, every optical parameter that has been checked and tested is performing at, or above, expectations. The team also found no critical issues and no measurable contamination or blockages to Webb’s optical path. The observatory is able to successfully gather light from distant objects and deliver it to its instruments without issue.

The picture to the right shows that alignment, focused on a single star. As noted in the caption:

While the purpose of this image was to focus on the bright star at the center for alignment evaluation, Webb’s optics and NIRCam are so sensitive that the galaxies and stars seen in the background show up.

After many years delay and an ungodly budget overrun, thank goodness Webb appears to be working better than expected.

It will still be several months before actual science observations begin. Further more precise alignment adjustments need to be done for all its instruments and mirrors.

11 comments

Recent avalanche on Mars

12:06 pm

Close-up comparison of slump
Click for full image.

Wide view comparison of slump
For full images go here and here.

Cool image time! Today the science team for the high resolution camera on Mars Reconnaissance Orbiter (MRO) released images showing a very recent avalanche, or slumping, on the interior slopes of what looks like a small three-mile-wide crater inside the easternmost reaches of the giant canyon Valles Marineris.

The comparison above, reduced and rotated to post here, is their close-up showing the change, which occurred sometime between March 2021 and February 2022. The wider comparison on the right, cropped, reduced, and annotated by me, shows a wider view to help place this slumping in the context of the crater.

Calling this an avalanche is not really accurate, as it isn’t really the fall of boulders and rocks, but the quick slumping downward of an entire section of what looks like dust or sand. As Alfred McEwen of the Lunar & Planetary Laboratory in Arizona writes in the caption:
» Read more

One comment

Overview of the impact Russia’s invasion is having on the Ukraine’s space industry

9:57 am

Link here. The summary focuses on the major aerospace regions in the Ukraine, Dnipro and Kharkiv, outlining how they have so far been untargeted by the Russian invasion.

“In Dnipro, Yuzhmash and Yuzhnoye have not been bombed or targeted by missile attacks so far. One of the possible reasons is that Russia’s plan is to take them over as part of their invasion, so they intend to keep these facilities intact,” Usov said. “Because of the Russian attacks in the Dnipro region, these facilities are not operating at full capacities, and they were forced to halt work on their projects. But a share of their employees ensures their operations continue.”

The situation is the same in Kharkiv. No aerospace facilities have been directly targeted, but the war has shut down some operations, while others — especially those partnering with western nations or companies — have gone almost entirely virtual.

The article also describes a Ukrainian startup, Orbit Boy, that is trying to develop an air-launched smallsat rocket in partnership with companies in Poland and Italy. The war is making this development difficult, if not impossible.

One comment

China tests rocket engine for the next Long March 5B launches

9:44 am

China’s state-run press today revealed that a full duration test has been successfully completed of the rocket engine that will be used by the core first stage of the Long March 5B rocket that will launch the next two modules for China’s Tiangong space station.

Developed by the China Aerospace Science and Technology Corporation, the engine is designed for the core stage of the Long March-5 carrier rocket series, which will be used to launch two lab modules of China’s orbiting Tiangong space station this year.

The long-range test, lasting 520 seconds, has verified the reliability of the engine, and there will be more than 20 experimental tasks that the rocket engine will undergo to further test its performance, the company disclosed.

Though this short press release does not say, it implies that this new engine is restartable, something that on previous launches of the Long March 5B was not possible for the core stage. This lack meant that once the core stage lifted and deployed its payload into orbit, it no longer had an engine that could control it. It would within weeks crash to Earth, threatening many habitable areas around the globe. This lack also resulted in a lot of very bad press for China.

If this new engine is restartable, it means that China will be able to de-orbit it in a controlled manner, over the ocean. If so, hallelujah! It means China will finally be honoring its obligations under the Outer Space Treaty.

If not, than China will continue to prove that it is an unreliable and dangerous player on the world stage.

Leave a comment

NASA extends Ingenuity’s mission through September ’22

9:31 am

Overview map
Click for interactive map.

NASA yesterday officially extended Ingenuity’s flight operations on Mars at least through September 2022, outlining in detail the helicopter’s hoped-for flight targets.

The map to the right shows the helicopter’s present location with the green dot, with its two possible future routes proceeding from this location indicated by dashed lines. The red dot indicates Perseverance’s present location, with its planned route from this spot indicated by the dashed lines.

Scheduled for no earlier than March 19, Ingenuity’s next flight will be a complex journey, about 1,150 feet (350 meters) in length, that includes a sharp bend in its course to avoid a large hill. After that, the team will determine whether two or three more flights will be required to complete the crossing of northwest Séítah.

Once Ingenuity crosses the rough terrain and reaches the delta, it will then be used to do more route scouting for the rover.

Upon reaching the delta, Ingenuity’s first orders will be to help determine which of two dry river channels Perseverance should take when it’s time to climb to the top of the delta. Along with routing assistance, data provided by the helicopter will help the Perseverance team assess potential science targets. Ingenuity may even be called upon to image geologic features too far afield (or outside of the rover’s traversable zone), or perhaps scout landing zones and caching sites for the Mars Sample Return program.

This ambitious plan exists because both the helicopter and its engineering team have far exceeded expectations. At the moment, there is no obvious reason why Ingenuity cannot continue to operate for years, an expectation that no one predicted.

Leave a comment

Launching a rocket using atomic explosions?

2:12 pm

Glenn Reynolds and Leigh Outten have just co-written a short paper advocating the use of “pulsed nuclear space propulsion” to launch rockets. You can download it here.

The concept, as first described in the 1950s, is described in the paper as follows:

It is not a tremendous surprise that when you set off an atomic bomb next to something, that something will move. That it could also remain essentially intact, however, was considerably more surprising. The challenge for the Orion team was to produce a spacecraft that could function after being subjected to not one, but many, nearby nuclear detonations, and that could be steered and navigated by an onboard crew.

This turned out to be easier than it sounds. The Orion spacecraft design that resulted involved a large steel “pusher” plate, behind a rather large spacecraft with a total weight of over 4,000 tons. That sort of design is very different from the spaceships we’re used to today.

The bulk of their paper reviews the legal obstacles to launching such rockets, as both the Outer Space Treaty and the Limited Test Ban Treaty put limits on the use of nuclear weapons in space. The paper argues that these limits would not apply to rockets propelled by atomic explosions, since the explosions would not be used as weapons.

The paper also argues that the technical obstacles for building such rockets are also solvable, and might even be easy to solve. This particular quote stood out starkly to me:
» Read more

36 comments

OneWeb and Arianespace scramble to find a rocket to launch satellites

10:26 am

Capitalism in space: With the cancellation of the last six Soyuz-2 launches for OneWeb and Arianespace due to Russia’s invasion of the Ukraine, the two companies are struggling to find an alternative rocket to launch the remaining 216 satellites that would complete OneWeb’s satellite constellation.

OneWeb has already paid Arianespace for the launches, so the responsibility to get the satellites in orbit is at present Arianespace’s. The problem is that its flight manifest for both the Ariane-5 (being retired) and the new Ariane-6 rocket are presently full.

Going to another rocket provider is problematic, even if a deal could be negotiated. The flight manifest for ULA’s Atlas-5 and Vulcan rockets is also filled. Though SpaceX’s Falcon 9 could probably launch the satellites, that company’s Starlink satellite constellation is in direct competition with OneWeb, which makes it unlikely the two companies could make a deal.

There have been negotiations with India to use its rockets, but it is unclear at present whether this will work.

One other option is to buy a lot of launches from the smallsat rockets of Rocket Lab, Virgin Orbiter, and Astra. This will likely cost more because more launches will be required, and that would required a complex negotiation between all parties.

2 comments

India successfully tests solid rocket booster for its Small Satellite Launch Vehicle

10:11 am

The new colonial movement: India yesterday successfully completed a ground test of the solid rocket booster to be used in its Small Satellite Launch Vehicle (SSLV).

SSLV was originally scheduled for launch in 2020 but was put on hold for two years when India panicked over the Wuhan flu. ISRO, India’s space agency, hopes now to complete the first launch in the next two months.

The two-year delay cost ISRO significantly in the international smallsat market. While American private companies like SpaceX, Rocket Lab, Virgin Orbit, and Astra continued to launch throughout the epidemic and thus garner business from the smallsat market, India’s market share shrunk. Whether it can recover that share once SSLV begins flying remains to be seen. India’s willingness to shut down so easily will I think make satellite companies hesitate before buying its services.

One comment

Mark Vande Hei sets new record for longest American space flight

10:03 am

Mark Vande Hei today set a new record for the longest American space flight, exceeding the 340 days flown by Scott Kelly on ISS in 2012-2013.

Since Vande Hei is scheduled to return to Earth on March 30th, his total record flight time should end up being 355 days, just short of a full year.

Vande Hei arrived at the space station aboard a Russian Soyuz spacecraft on April 9, 2021, knowing at the time that he would be there for at least for the five to six months that is typical today for expedition crew members. His mission was extended by NASA in September to allow for a Russian movie crew to visit the orbiting complex and, more importantly, protect against a crew rotation schedule that could leave the station without any Americans on board.

Vande Hei’s record will be the fifth longest, behind four other Russians on Mir. Musa Manarov and Vladimir Titov were the first to complete a year long flight in 1987-1988. Valery Polyakov holds the record for the longest flight, 437 days in 1994-1995. Sergei Avdeyev’s flight of 381 days on Mir in 1998-1999 is the second longest.

Leave a comment

Astra successfully completes its second orbital launch

9:44 am

Capitalism in space: After a February 10, 2022 launch failure, the rocket startup Astra today successfully completed its second orbital launch and first in 2022, putting its first commercial payloads into orbit.

Unfortunately the separation and deployment of a payload platform from the upper stage had not been confirmed as of this posting. While the payloads can still function attached to the upper stage (they are not fully functional satellites), if this deployment turns out to be a failure it will put a stain on the launch. Astra confirmed the successful deployment of the payloads about an hour after launch.

That the company could investigate a launch failure, fix the problem, and resume launches in just over a month however speaks well for its future. If the deployment failed fixing it should proceed as quickly. Meanwhile, the company announced yesterday a new multi-launch contract through 2025 with Spaceflight, which finds launches for smallsats and also provides a small tug to move them into their preferred orbit.launches.

The leaders in the 2022 launch race remain unchanged:

10 SpaceX
5 China
2 ULA
2 Russia

The U.S. now leads China 16 to 5 in the national rankings.

2 comments

Entire Russian communications satellite industry threatened by Russia’s Ukraine invasion

9:12 am

Because almost all Russian communications satellites rely on western components, the sanctions imposed on Russia due to its invasion of the Ukraine will likely prevent the future launch of any such satellites.

The overwhelmingly wide sanctions against the Kremlin left practically no chance for Russia to complete any of its communications satellites in the development pipeline at the time due to their dependency on Western payloads.

Conceivably, Russia could turn to China for necessary components or/and Moscow could try again developing necessary competencies inside the country, but given little signs of progress on both of those fronts in the past, it could probably take years if not decades before all the technological gaps could be closed and it would be even more difficult to do under much harsher economic conditions and export controls. It is also a question whether China would be interested in boosting strategically important industries in Russia with potential military implications or whether it would want to challenge the Western sanctions regime by putting at risk its far more important trade relations with the United States.

The article at the link also notes the generally low quality of Russian communications satellites, which for example generally last only five to six years, compared to the 10 to 15 year lifespan of western satellites. This low quality has meant that Russia has been unable to sell this technology to anyone outside Russia.

3 comments

Mesa in the Martian northern lowlands

3:21 pm

Mesa in the dry northern lowlands
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on February 2, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and shows a mesa sticking up on the relatively flat and featureless northern lowland plains in Utopia Planitia, the second largest impact basin on Mars.

The full image shows three such mesas. Though pictures taken in the northern lowlands of Utopia tend to show evidence of buried ice or glaciers, the impression I get from this picture is one of dryness. If there is any ice here, it is below ground. And even that seems unlikely. The surface surrounding nearby craters does not have that squishy and slushy look that is seen in the north when an impact occurred on near surface ice. Instead, the ground looks solid.

The overview map below reinforces this impression.
» Read more

Leave a comment

Russia today confirmed it will return NASA astronaut as planned

9:12 am

As expected, Russia today confirmed in its state-run TASS news agency that NASA astronaut Mark Vande Hei will come back to Earth in its Soyuz capsule on March 30th, as planned.

The Soyuz MS-19 space capsule with Anton Shkaplerov, Pyotr Dubrov and Mark Vande Hei is expected to land on March 30. Dubrov and Vande Hei arrived on the ISS in the Soyuz MS-18 spacecraft together with Oleg Novitsky. This descent module brought back to Earth the two feature film crew members – actress Yulia Peresild and film director Klim Shipenko, who had arrived on the ISS together with Anton Shkaplerov in the Soyuz MS-19 on October 5.

There had been a number of stories in the mainstream press suggesting the Russians would leave Vande Hei behind in response to the international sanctions being imposed on Russia because of its invasion of the Ukraine. All were based on a single comment by Roscosmos’ head Dmitry Rogozin, who had simply noted visuals from a Russian news source and aired in the U.S. that showed the Russian half of ISS separating away and leaving Vande Hei behind. Rogozin was only noting that the U.S. press was worried about this possibility.

There was no chance the Russians would separate its half of ISS now. Zero. To do such a thing will require several months of preparation. For example, the Russian half has at least one module, Zvezda, that is failing. If Russia ever creates its own new space station using part of ISS, it will have to launch some new modules first.

Also, for Russia to leave Vande Hei behind would be a public relations disaster that would only make worse the disaster of its invasion of the Ukraine. Russia might end its partnership at ISS in the near future, but it won’t do it in a way that might threaten the lives of any astronauts, from any nation.

21 comments

Supernova discovered in Cartwheel galaxy

8:54 am

Cartwheel Galaxy, before and after supernova
Click for full image.

Cool image time! In reviewing a December 2021 image of the Cartwheel Galaxy taken by the New Technology Telescope in Chile, astronomers noticed something that was not there in earlier images, a new supernovae.

The photo above, reduced to post here, compares a 2014 image, taken by the Very Large Telescope, with the 2021 photo. In the lower left of the new image is a bright object not in the previous photo.

This event, called SN2021afdx, is a type II supernova, which occurs when a massive star reaches the end of its evolution. Supernovae can cause a star to shine brighter than its entire host galaxy and can be visible to observers for months, or even years — a blink of an eye on astronomical timescales. Supernovae are one of the reasons astronomers say we are all made of stardust: they sprinkle the surrounding space with heavy elements forged by the progenitor star, which may end up being part of later generations of stars, the planets around them and life that may exist in those planets.

Cartwheel is about 500 million light years away, and because of its bright outer ring is one one of the more unusual nearby galaxies.

5 comments

Ingenuity completes 21st flight on Mars

3:54 pm

Overview map
Click for interactive map.

According to a tweet today from JPL, the Mars helicopter Ingenuity has successfully completed its 21st flight on Mars, traveling 1,214 feet in two minutes and nine seconds at an average speed of 12.6 feet per second.

The red dot on the map to the right shows Perseverance’s location as of today. The green dot indicates Ingenuity’s position before the 21st flight. Since neither the Perseverance nor the helicopter teams have posted any updates describing the 21st flight, it is difficult to indicate a precise location for its landing site. All we know is that the helicopter is supposed to fly to the northwest, cutting across the rougher region while the rover follows the tan dotted line around that rough region, with both targeting the delta to the northwest.

As a guess, I have placed a black dot about 1,200 feet to the northwest.

Leave a comment

Russia to lose seventeen launches due to Ukraine sanctions

9:43 am

This article at Space News today provides a nice summary of the number of launches that Russia’s Roscosmos will likely lose in the next three years due to the break off of commercial operations against that country because of its invasion of the Ukraine.

According to the article, Russia will lose sixteen launches. The list however misses one South Korean satellite scheduled for launch on an Angara rocket later this year. The total breakdown of this lost business is therefore as follows:

13 launches lost in 2022
3 launches lost in 2023
1 launch lost in 2024

The entities impacted are as follows:

Government launches:
Europe: six launches in ’22 and ’23, totaling eight satellites
South Korea: two launches in ’22
Sweden: one launch in ’22

Commercial launches:
OneWeb: six launches in ’22, totaling 199 satellites
Axelspace: one launch, totaling four satellites
Synspective: one launch

If the Ukraine War were to end today, it is possible that most of the government launches would be reinstated. The commercial companies however are almost certainly going to find other launch providers, no matter what. OneWeb for example is hardly going to trust its business to Russia after that country cancelled the launches and (at least at this moment) has confiscated the already delivered satellites.

If the war continues for another two or three months, then all this business will vanish for good, as alternative rocket companies will likely be found.

This list however does reveal one interesting fact. It appears that very few private companies have been interested in buying Russian launch services, with or without the Ukraine War. Most of Russia’s international customers have been other governments. Even OneWeb falls partly into this category, as it is half owned by the United Kingdom.

This fact suggests that Russia’s product has simply not been competitive against the new commercial market. The governments meanwhile probably had political motives in addition to economics to throw their business Russia’s way. Those political motives are now gone.

8 comments

Software company aims to launch 250 satellite weather constellation

9:06 am

Capitalism in space: Acme Atronomatic, a software company that developed the MyRadar weather app that has been downloaded 50 million times, is now planning to launch 250 satellite weather constellation, with the first test satellites scheduled for launch in April.

The satellites, scheduled to launch in April on a Rocket Lab Electron from New Zealand, are designed to test and validate hardware for Orlando, Florida-based Acme’s Hyperspectral Orbital Remote Imaging Spectrometer (HORIS) constellation.

Environmental data captured by the HORIS constellation will be paired with artificial intelligence and machine learning to create data-fusion products for the company’s government and commercial customers. Acme also intends to draw on data and imagery from the HORIS constellation to enhance its MyRadar weather app.

The first batch of Acme satellites set to launch in April are PocketQubes, satellites measuring 5 centimeters on each side. The “batch consists of our own satellite and two others that we have informally helped design and build,” Acme CEO Andy Green told SpaceNews by email. “We’re mostly focusing on the primary satellite, MyRadar1,” which is a HORIS constellation prototype.

Private weather satellites like this are the future, rather than government-built satellite, which has been the norm for sixty years. That shift is also apparently being encouraged by Congress, which the House has passed and the Senate is considering. In it NOAA’s budget to build its own weather satellites was trimmed by about 25%, from the requested $1.68 billion to $1.29 billion.

This trim is hardly painful to NOAA’s weather satellite program, which remains well funded. It does indicate however that our spendthrift Congress is interested in ways to save money in this area.

5 comments

More thumbprints on Mars!

1:22 pm

Thumbprints on Mars
Click for full image.

Cool image time! Among the many strange and unexplained geological features that scientists have identified on Mars, the thumbprint feature is one of the most intriguing. The photo to the right, cropped and reduced to post here, is a fine example, and was taken on September 10, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The thumbprints are the lighter splotches, and are generally found near curved ridges located mostly in Martian lowlands. All appear to have crater-like features in them, though these craters are not impact craters, but likely (though not confirmed) caused by some form of underground eruption, be it mud, ice, lava or something else. Though scientists do not yet really understand the process that formed the thumbprints, the data strongly suggests that they formed in connection with glacial events. From this 2003 paper [pdf]:

TT [thumbprint terrain] as well as the associated trough systems were formed by a glacial mechanism. [Elevation] data show that the trough systems consistently lie topographically above the TT; this implies that if they were they formed by the same glacier, the troughs must have formed before the glacier retreated and formed the TT.

The splash apron around the crater near the bottom of the photo supports the glacial theory, implying the presence here of underground ice.

Scientists have also theorized wind processes and cinder cones as explanations for these features.

These particular thumbprints are located, as shown in the overview map below, in the same general area as a previous cool image of thumbprints, from April 2019.
» Read more

One comment

Virgin Orbit signs deal to launch Welsh-built satellite from Cornwall in ’22

9:17 am

Capitalism in space: While competing spaceports are now being constructed in Scotland and hope to launch this year, Virgin Orbit yesterday signed a deal with the Wales company Space Forge to launch its satellite from Cornwall, England, in ’22.

Because Virgin Orbit is already operational, while the rockets planned for the two Scottish spaceports in Shetland and Sutherland are still being developed, it appears that Cornwall will win the race to complete the first launch from UK soil in more than a half century.

Space Forge’s business plan is in itself most intriguing.

Space Forge recently announced that, along with partners, it is developing a world-first service incorporating both launch and return of a new small class of vehicle – the ForgeStar – that can be deployed from conventional launchers to provide rapid, reliable and reusable in-space infrastructure. This inaugural mission will see Space Forge’s ForgeStar-0 platform launched for the first time and will test future return from space technology.

Aiming to unlock the next steps on the path to market expansion, dedicated in-space manufacturing, coupled with proof of reliable return, will allow Space Forge to leverage the benefits of the space environment, namely: microgravity, vacuum, and temperature, to create products impossible to manufacture on Earth.

How exactly this satellite will safely return its space-manufactured goods is not yet clear, but if it does so successfully Space Forge will have created a product that at present would be unique. While you can now get your products back from ISS, such a process is very complicated and not very cost effective. Space Forge, if successful, would simplify that process, allowing customers to launch, manufacture products in space, and get those products back, all in one package.

One comment

Blue Origin expands its rocket engine factory in Alabama

9:04 am

Capitalism in space: Blue Origin yesterday revealed that it is hiring 300 more engineers and expanding the rocket engine factory in Alabama in order to produce flight worthy BE-3 and BE-4 engines.

Blue Origin in Huntsville spent the pandemic supporting the company’s main engine plant in Kent Washington with parts for the company’s BE-3 and larger BE-4 engines, [site lead Nathan] Harris said. “We are now actually in the process of building our first set of complete engines through our facility,” he said. Those first engines will be produced this year.

…“We’re getting very close,” Harris said. “They’re still doing quite a bit of retrofitting. As you learn, anytime you retrofit something that’s over 60 years old, it takes a little bit more and there’s a little bit more that you unearth that was undiscovered.”

Harris said he expects to be testing the BE-3 “in the next couple of months followed shortly by the BE-4.” [emphasis mine]

This may be good news for both ULA’s Vulcan rocket as well as Blue Origin’s own New Glenn rocket. Both need the BE-4 engine, and both have been delayed years because it has not been ready on time. While the engine problems appear to have been resolved, Blue Origin had not put any thought into developing a practical and affordable manufacturing process that would allow it to build enough engines to serve both itself and ULA.

This expansion at the engine factory suggests the company is finally moving into its production phase. The highlighted sentence above however also tells us that the first flight worthy BE-4 engines are still months away, which will further delay launch of Vulcan and New Glenn. It is now certain that neither will launch this year, putting both rockets more than three years behind schedule.

6 comments

UK bans all space-related exports to Russia

8:52 am

In response to Russia’s invasion of the Ukraine, the United Kingdom yesterday announced new sanctions, banning all space-related exports as well as increased sanctions on aviation.

For Russia, this component of these new space sanctions might be the most painful, should something go wrong on one of its launches:

The space export ban includes all related services, including insurance or reinsurance services, U.K. officials said. “This means cover is withdrawn on existing policies and UK insurers and reinsurers will be unable to pay claims in respect of existing policies in these sectors,” wrote in the statement.

This restriction also means that any satellite customers will not be able to claim damages. Thus, customers like South Korea, which still has two launches planned on Russia rockets, will lose everything if the launch fails. Because of this, it is almost certain that it will cancel these launches,

Leave a comment

Georgia voters kill Camden spaceport project

9:41 am

The residents of Camden County in Georgia yesterday voted by a margin of 72% to 28% to end the county’s project to build a project there.

There are hints that county officials might still try to proceed, having already spent more than $10 million on the project. There are also strong indications that if they do, they will be blocked legally on many fronts.

What this vote suggests is that Americans continue to be uninterested in more commerce, and are easily convinced to put environmental claims first in any political battle. The opponents of the spaceport had said that the spaceport threatened local wildlife — something that clearly doesn’t happen based on more than a half century of data at Cape Canaveral — and the voters in Camden were quick to agree. The voters also probably had a bit of not-in-my-backyard behind their vote as well.

Whether Camden would have succeeded as a spaceport of course is unknown. There are a lot of such facilities being proposed and built, and it is unclear if their number fits the actual launch demand.

10 comments

SpaceX successfully completes 10th launch in ’22

9:25 am

Capitalism in space: SpaceX this morning successfully placed 48 Starlink satellites into orbit, using its Falcon 9 rocket.

The first stage landed successfully, completing its fourth flight. The fairings were new.

SpaceX continues to maintain a one-launch-per-week pace in ’22, suggesting it will succeed in completing more than 50 launches this year, as predicted by the company.

The leaders in the 2022 launch race:

10 SpaceX
5 China
2 ULA
2 Russia

The U.S. now leads China 15 to 5 in the national rankings. Note that Russia had predicted it would complete about 27 launches in ’22. With the loss of all of its international customers due to its invasion of the Ukraine, that number is likely cut by two-thirds. If Russia completes more than a dozen launches this year we should be surprised.

4 comments

Monitoring one glacier flowing off a mesa in Mars’ glacier country

1:28 pm

Vicous glacial flow on Mars
Click for full image.

Today’s cool image takes us back to the mesa in Mars’ glacier country that first clued me in on the prevalence of ice in the Martian mid-latitudes. The photo to the right, rotated, cropped, and reduced to post here, was taken on November 13, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows a viscous flow coming down from a hollow on that mesa’s southern wall.

The new image has likely been taken to see if anything has changed since the previous image was taken in 2014. Based on the resolution published at the MRO website, nothing seems to have changed, though with more sophisticated software higher resolution versions of the images are available that might show some changes.

In my first post about Mars’ glacier country in December 2019, this flow was one of four that I featured coming off this same 30-mile wide mesa, as shown by the first overview map below.
» Read more

Leave a comment
1 … 159 160 161 162 163 … 491