Tag: engineering

Shetland spaceport construction to begin in March

10:03 am

Capitalism in space: Construction of the United Kingdom’s first spaceport in more than a half century is now set to begin this month in the Shetland Islands, with the first launch expected before the end of the year.

The Lamba Ness peninsular in Unst will be home to the £43 million spaceport, with builders set to start work in late March, after Shetland Islands Council gave the project planning permission.

Three launchpads will be built at the SaxaVord spaceport, allowing for the launch of small satellites into either polar or sun-synchronous low-Earth orbits.

The company is aiming to launch 30 rockets a year, and has set the target of seeing its first orbital launch from UK soil after the third quarter of this year.

It appears now that the United Kingdom is going to have two different competing spaceports, one on the Shetland Islands and the second in Sutherland, Scotland. It appears the UK rocket startup Skyrora as well as a partnership between Lockhead Martin and the smallsat rocket startup ABL will launch from Shetland, while the UK company Orbex will use Sutherland.

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Rocket Lab to build new Neutron rocket at Wallops Island in Virginia

9:53 am

Capitalism in space: Rocket Lab announced yesterday that it will build the manufacturing factory for its new Neutron rocket at the Wallops Island in Virginia, close to the company’s launchpad there.

The complex will be home to a rocket production, assembly, and integration facility, as well as a dedicated launch pad for the Neutron rocket located on the southern end of Wallops Island. The estimated 250,000 square foot state-of-the-art complex will be constructed on a 28-acre site adjacent to the Wallops Island Flight Facility and will include a Launch Control Center, Rocket Lab’s fifth global operations center for launch activities and on-orbit operations. To support rapid production of the Neutron rocket, current plans for the complex include automated fiber placement robotic production systems capable of laying up meters of Neutron’s new, specially formulated carbon composite structures in minutes. As a reusable rocket, Neutron is designed to land back on the launch pad after a mission and from there it would be returned to the production complex for refurbishment and re-flight.

The Wallops Island spaceport hopes the state of Virginia will commit $45 million of its own money to this project, but that money still needs to be approved by the state’s legislature.

“Assuming that is done and blessed by the legislature, and we have no reason to believe it will not be, $15 million will go into construction for the facility, and the 30 million will be geared toward the construction of the new launch pad,” Mercer said, noting that the pad would be multi-purpose, not a Neutron exclusive.

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Scientists: Yutu-2 spots tiny glass globules similar to those found by Apollo astronauts

9:45 am

According to a paper just published Chinese scientists running the Yutu-2 rover on the far side of the Moon have spotted several tiny glass globules similar to those found by Apollo astronauts.

Xiao and his team believe the small spheres, which are between 0.59 and 0.79 inches (1.5 to 2.5 centimeters) across, were probably formed by relatively recent meteor impacts. Specifically, the researchers believe that the globules formed from anorthosite, a volcanically-formed rock rich in the mineral feldspar, after a high-energy impact melted the rock and reformed into spheres.

In appearance these Yutu-2 globules appear translucent, unlike the Apollo globules which were either dark or opaque. Since the rover did not do spectroscopy on these objects before moving on, however, their actual make-up is unknown, with the speculations by the researchers above merely that, speculations, though reasonable.

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OneWeb launches from Russia threatened by Russian war in the Ukraine

9:34 am

While all signs suggest that this week’s launch from Kazakhstan of another 36 OneWeb satellites will proceed as planned, later Soyuz-2 launches either from Russia or French Guiana now seem doubtful.

Russia has suspended all further Soyuz-2 launches from French Guiana. And though all the Kazakhstan launches have been paid for and Russia appears willing to proceed, the war has created issues.

But even if Baikonur remains open, it is unclear whether export restrictions could affect the transport of OneWeb satellites from where they are made in Florida to the launchpad in Kazakhstan.

Another potential wrinkle, unrelated to sanctions: OneWeb has traditionally used An-124 aircraft that are operated and maintained by Ukraine’s Antonov to ship its spacecraft overseas. Availability issues aside, airspace restrictions over Europe could complicate otherwise routine logistics.

It will not surprise me if OneWeb will look for other launch services, though this will certainly damage its bottom line. First, it will likely not get a refund from Russia for the Soyuz-2 launches, which means it will pay twice for those launches if it switches to another rocket company. Second, the war is likely going to delay further launches regardless, which will delay roll out of its service and thus prevent it from obtaining customers.

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Russia suggests sanctions will force to end ISS partnership in ’24, rather than ’30

9:16 am

Because of the sanctions imposed by the Biden government due to the Russian invasion of the Ukraine, officials at Roscosmos today suggested that they are considering ending their participation on ISS in 2024, rather than 2030 when NASA wants to de-orbit it.

“Roscosmos currently has a government permission for operating the ISS only until 2024. The issue of extending the agreement in the current conditions causes our skepticism,” the Roscosmos press office said.

The Russian space agency said it hoped that the US Department of State would soon stop its pressure on NASA and allow it to begin a dialogue with Russia. “If we do not come to an agreement, this will have its effect on the international piloted space program,” the press office said.

This really isn’t news. Even before the invasion, Russia had been uncertain on whether it would continue on ISS after ’24. It really needs ISS, as its own effort to build a Russian station has numerous problems. The Russians however also recognize that at least one of its modules on ISS, Zvezda, is failing. The station’s life is limited regardless.

Moreover, the U.S. is shifting away from government-owned assets in space. ISS’s replacement will be privately built and owned, and it is very very unlikely those private companies will partner with Russia.

The Russian partnership at ISS is ending no matter what. The Ukraine war is merely accelerating it.

As for maintaining ISS after ’24 should the Russians leave, NASA has some of the main Russian responsibilities well covered, due to private enterprise. It will test raising the station’s orbit shortly using the Northrop Grumman Cygnus freighter presently docked with the station, thus replacing Russia’s Progress freighter boosts. And the availability of Dragon and Starliner capsules will provide lifeboats for station crews.

The big question is that some of the life support equipment is provided by Russian modules. If the Russians detach the portion of the station, ISS will lose some of those capabilities. Hopefully Axiom’s first ISS module, due to launch by ’24, will replace those Russian assets.

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ESA: ExoMars launch in ’22 “very unlikely” due to Russian invasion of the Ukraine

9:05 am

In a statement yesterday condemning Russia’s invasion of the Ukraine and responding to the Russians’ decision to suspend cooperation with Arianespace in French Guiana, the European Space Agency (ESA) also admitted, almost as an aside, that the ExoMars launch in ’22 to Mars is now “very unlikely.”

That mission is a partnership with Russia, where the Russians provide the rocket and the lander that will put Europe’s Franklin rover on the surface.

For the scientists running ExoMars, this delay only adds to their frustration, as the mission has already been delayed several times, most recently from a ’20 launch because the lander parachutes — being built by ESA — were not ready.

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First delivery of new Starlink terminals arrives in the Ukraine

5:09 pm

The first promised deliver by Elon Musk of new Starlink terminals arrived in the Ukraine today, only two days after promised.

Ukraine digital minister Mykhailo Fedorov, who tagged Musk in a request on Twitter on Saturday, posted that Starlink was “here” in Ukraine — with a photo showing more than two dozen boxes of the company’s user kits in the back of a truck.

Each Starlink kit includes a user terminal to connect to the satellites, a mounting tripod and a Wi-Fi router. It’s not known how many kits SpaceX is sending to support Ukraine.

Fedorov thanked Musk in his tweet; Musk responded: “you are most welcome.”

Ukraine-based Oleg Kutkov tweeted a screenshot of an internet speed test on Monday, saying “Starlink is working in Kyiv” and thanked SpaceX for the company’s support.

Two dozen Starlink terminals is only a drop in the bucket, but with a first delivery this quickly, many more are likely to follow, and make a significant difference in helping the Ukraine block Russia’s invasion.

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Rocket Lab successfully launches Japanese radar satellite

1:56 pm

Capitalism in space: Rocket Lab today successfully completed its first launch in 2022 as well as the first launch from a second launchpad in New Zealand, using its Electron rocket to place in orbit a Japanese commercial radar satellite.

At the moment of writing the upper stage has not yet deployed the satellite, though deployment should happen momentarily. UPDATE: Satellite deployed successfully.

The new launchpad gives Rocket Lab three launchpads, two in New Zealand (both operational) and one in Virginia (delayed due to the NASA bureaucracy but about to go operational).

Rocket Lab is now tied with five other rocket operations, 4 private and 2 government, all with a single launch in ’22. The leaders in the 2022 launch race remain unchanged:

8 SpaceX
4 China
2 Russia

The now U.S. leads China 12 to 4 in the national rankings. At this same point in 2021, the U.S. had only completed 8 launches, so the pace this year is significantly higher. If this pace is maintained, the U.S. will complete 72 launches, which will just break the country’s best previous year of 70 successful launches in 1966. This total would also more than double the average yearly launch total for U.S. since 1966.

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Chandra’s camera remains in safe mode

12:12 pm

Though engineers have improvised a work-around that has allowed most of instruments on the Chandra X-Ray observatory to resume science operations, the power supply problem in the telescope’s high resolution camera (HRC) that occurred on February 9th remains unresolved, leaving that camera in safe mode.

The Chandra science instrument and engineering teams continue to analyze the cause of the HRC power supply issue, as well as potential approaches to enable the HRC again. The spacecraft is otherwise healthy and operating normally.

Chandra has been flying now for more than two decades, well past its original mission. For it to begin to have these problems is not surprising, though it will be a great tragedy if it fails just as the James Webb Space Telescope is about to go operational. Ideally astronomers want data from both, as well as Hubble, to cover a wide swath of the electromagnetic spectrum, from the optical to the infrared to X-rays.

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China successfully launched rockets twice today

8:45 am

China successfully launched two rockets this morning, one a Long March-4C carrying an Earth observation satellite and the second a Long March-8, carrying 22 smallsats.

The Long March-8 is one of China’s next generation rockets, meant to launch from its coastal spaceport and use less toxic fuels. Also, according to the state-run press article, its manufacture process is aimed at allowing for a launch rate of once per week.

The leaders in the 2022 launch race:

8 SpaceX
4 China
2 Russia

The U.S. leads China 11 to 4 in the national rankings.

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Ingenuity’s 20th flight a success

7:59 pm

According to a tweet released tonight by JPL, the 20th flight of Ingenuity on Mars was a success, lasting 130 seconds and traveling about 1,283 feet.

The tweet includes a short video showing the helicopter taking off and then landing, at the same spot, which I am sure is not of this flight but from a previous test that simply went up and down. The flight just completed took off and headed mostly to the north, slightly west, and landed in a different spot entirely.

Expect more information to follow.

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Scientists: Martian topography in one region suggests the past existence of lakes and river networks, but not a large single ocean

3:53 pm

Based on a just published paper, scientists using orbital topography data and imagery have concluded that more than three billion years ago on Mars ancient rivers in the transition zone between the southern cratered highlands and the northern lowland plains fed into numerous lakes in the lowlands, not a single large ocean as some scientists posit.

From their abstract:

The northern third of Mars contains an extensive topographic basin, but there is conflicting evidence to whether it was once occupied by an ocean-sized body of water billions of years ago. At the margins of this basin are the remnants of deltas, which formed into water, but the size and nature of this water body (or water bodies) is unclear, and detailed investigations of different regions of the basin margins are necessary.

In this study, we use high-resolution image and topographic datasets from satellites orbiting Mars to investigate a series of water-formed landforms in the Memnonia Sulci region, set along the boundary of Mars’s northern basin. These landforms likely formed billions of years ago, providing evidence for ancient rivers and lakes in this region. The geologic evolution of these rivers and lakes was complicated, likely influenced by water-level fluctuations, changes in sediment availability, and impact cratering. Our topographic analysis of these rivers and lakes suggests that they terminated in a series of ancient lake basins at the boundary of Mars’s northern basin, rather than supplying a larger, ocean-sized body of water. [emphasis mine]

Overview map

The Memnonia Sulci region is in the cratered highlands just south of the Medusae Fossae Formation, the largest volcanic ash deposit on Mars. The region of study in it is marked by the blue dot in the overview map to the right.

The study does not preclude the possible existence of a northern ocean on Mars, but it says that at least in this region at the equator, it did not exist. Instead, the various river valleys drained into separate smaller and relatively short-lived lakes.

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SpaceX successfully launches 50 Starlink satellites

10:22 am

Capitalism in space: SpaceX today successfully launched another 50 Starlink satellites using its Falcon 9 rocket.

The first stage, on its fourth flight, landed successfully on the drone ship in the Pacific. The fairings completed their third flight. The satellites themselves have not yet been deployed, as of this moment. Deployment is expected in about an hour.

The leaders in the 2022 launch race:

8 SpaceX
2 China
2 Russia

SpaceX is so far maintaining a launch rate of one launch per week in ’22, as the company had predicted.

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Curiosity images the Martian version of a cave formation

10:00 am

An helictite on Mars?
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken today by Curiosity’s Mars Hand Lens Imager (MAHLI), a camera designed to get close high resolution images of very small features on the surface.

The Curiosity image site does not provide a scale, but MAHLI, located at the end of the rover’s robot arm, is capable of resolutions as small as 14 microns per pixel. Since a micron is one thousandth of a millimeter, and the original image was 1584 by 1184 pixels in size, that means the entire image is likely only slightly larger than 18 to 25 millimeters across, or slightly less than an inch.

This feature, which closely resembles a cave helictite, is thus about a quarter inch in size. Helictites, which in caves often resemble wildly growing roots, are nonetheless made of calcite, not organic material. They grow wildly because the water is being pushed out from their center is under pressure, so that as it drips away from the formation it leaves its calcite deposits randomly, causing the formation to grow randomly.

MAHLI also took what looks to be an infrared or heat image of the formation, which appears to show that the tips of the branches are at a different temperature, I think cooler, than the rest of the formation.

While seeping water causes helictites on Earth, what formed this thing on Mars is beyond my guess. It sure looks cool however.

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Space spat between Biden and Rogozin over Russian invasion of Ukraine

9:23 am

Yesterday saw harsh words expressed by both President Biden and the head of Roscosmos, Dmitry Rogozin, concerning the partnership of the two countries at ISS, with Biden imposing sanctions and noting these will specifically harm Russia’s space industry, and Rogozin responding by threatening to dump ISS on either a U.S. or European city.

In Biden’s statement, he said, “We estimate that we will cut off more than half of Russia’s high-tech imports, and it will strike a blow to their ability to continue to modernize their military. It will degrade their aerospace industry, including their space program,”

Rogozin’s response came in a series of tweets on Twitter, with his most bellicose statements as follows:

Do you want to destroy our cooperation on the ISS?

This is how you already do it by limiting exchanges between our cosmonaut and astronaut training centers. Or do you want to manage the ISS yourself? Maybe President Biden is off topic, so explain to him that the correction of the station’s orbit, its avoidance of dangerous rendezvous with space garbage, with which your talented businessmen have polluted the near-Earth orbit, is produced exclusively by the engines of the Russian Progress MS cargo ships. If you block cooperation with us, who will save the ISS from an uncontrolled deorbit and fall into the United States or Europe? There is also the option of dropping a 500-ton structure to India and China. Do you want to threaten them with such a prospect? The ISS does not fly over Russia, so all the risks are yours. Are you ready for them?

Meanwhile, it isn’t Russia’s space industry that will suffer the most from this invasion, but Ukraine’s. For example, the American company Launcher, which has had a software team in the Ukraine, has moved most of that team to Bulgaria for their safety.

As a precaution given the escalating political situation, during the last few weeks, we successfully relocated our Ukraine staff to Sofia, Bulgaria, where we opened a new Launcher Europe office. We also invited their immediate family to join them in this move and funded their relocation expenses. We continue to encourage and support five of the support staff and one engineer who decided to remain in Ukraine.

The company’s press release makes it clear that it is no longer dependent in any way with facilities in the Ukraine.

Launcher’s actions will not be the last. Expect all Western commercial efforts linked to the Ukraine to break off ties in order to protect their investments. Moreover, if Russia should recapture the Ukraine entirely, it will likely not give much support to its space industry, as Roscosmos has developed its own Russian resources in the past two decades and will likely want to support those instead.

Thus, the expected destruction of that country’s aerospace industry by Russia’s invasion proceeds.

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Stratolaunch’s Roc successfully completes 4th test flight

9:02 am

Capitalism in space: Stratolaunch’s Roc airplane, the largest ever flown, successfully completed its 4th flight yesterday, testing for the first time the retraction and extension of its landing gear.

The flight lasted one hour and forty-three minutes.

The company is now aiming to begin full operations in the second half of ’23, when it hopes it will also be dropping versions of its Talon-A test vehicle from the bottom of Roc to perform hypersonic tests for the military as well as commercial companies.

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SLS launch delayed again

8:54 am

As expected, NASA announced yesterday that it will be unable to launch its SLS rocket on its first unmanned test flight in April, as the agency had hoped, and is now evaluating a May launch date instead.

“April is not a possibility. We’re still evaluating the tail end of May,” said Tom Whitmeyer, NASA’s deputy associate administrator for exploration systems development. “But I want to be really careful once again, being straightforward with you. You know, we really need to get through this next few weeks here, see how we’re doing.”

The next possible windows for launch are from May 7-21, June 6-16 and June 29-July 12.

March 16th is still being targeted for the rocket’s full launch countdown dress rehearsal. Since the agency has said it will need about a month to assess the results of that dress rehearsal, the May launch window is exceedingly unlikely. Based on the slow pace NASA has set throughout this entire project, I predict that the launch will not occur before June, with the excellent chance it will be delayed to the summer. And this is assuming the dress rehearsal goes perfectly.

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Ingenuity update: Dust storm caused issues; 20th flight upcoming

9:43 am

Overview map
Click for interactive map.

According to the Ingenuity engineering team in an update today, the Mars helicopter is getting ready for its 20th flight, scheduled for no earlier than today, even as the team successfully dealt with dust that settled on the helicopter’s various parts prior to flight 19.

The dust storm did, however, leave the Ingenuity team with two additional challenges to deal with: a dirty navigation camera window and dust in the swashplate assemblies.

Comparing navigation camera images taken before and after the dust storm revealed that the storm deposited debris on the ground-facing navigation camera window, specifically around the periphery of the camera’s field of view. Debris on the navigation camera window is problematic because Ingenuity’s visual navigation software may confuse the debris with the actual ground features that it tries to track during flight, which can cause navigation errors. Fortunately, Ingenuity’s software provides a tool for dealing with this issue: The team can provide an updated image mask file that tells the visual navigation software to ignore certain regions of the image. The operations team made use of this feature and performed an image mask update late last month.

The dust storm also deposited dust and sand in Ingenuity’s swashplate assemblies. On Mars as well as on Earth, a helicopter’s swashplates are very important because they control the pitch (angle from horizontal) of the rotor blades, which is essential for stable and controlled flight. Ingenuity’s swashplate issue was first detected when the rotorcraft reported a failure during its first automated swashplate actuator self-test since the dust storm on Jan. 28, 2022 (Sol 335 of the Perseverance mission). Data revealed that all six swashplate servo actuators were experiencing unusual levels of unusual levels of resistance while moving the swashplates over their range of motion.

The engineers subsequently tested a procedure, planned before launch, for cleaning the swashplates, and found that it worked.

The data from that activity showed a significant improvement – a reduction in servo loading, so the team followed it up with seven back-to-back servo wiggles on Sol 341. Remarkably, by the end of that activity, Ingenuity’s servo loads appeared nearly identical to nominal loads seen prior to the dust storm.

After dealing with both dust issues, flight 19 proceeded successfully, as planned.

The overview map above shows the present location of Perseverance as the red dot, the present location of Ingenuity by the green dot, and the approximate landing site for the helicopter’s 20th flight by the black dot. The tan dotted line shows Perseverance’s planned route.

Perseverance itself has been traveling fast since Ingenuity’s last flight on February 9th, almost completely retracing its steps to return almost to its landing site.

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Dry barren ground in Martian northern lowlands?

3:38 pm

Dry barren ground in the Martian northern lowlands?
Click for full image.

Today’s cool image is intriguing because of what appears to not be there, rather than what is there. The photo to the right, cropped and reduced to post here, was taken on November 3, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

At first glance it appears to show a very dry, barren surface. At its base are many parallel grooves running from the southwest to the northeast. On top of these grooves are several more recent crater impacts, as well as several patches of higher bedrock that appears to have been hard enough to resist whatever erosion process caused the groves.

Yet, based on the overview map below, the location of this photo should not be dry and barren, but instead home to a near-surface ice sheet covering everything.
» Read more

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Astra releases update on February 10th launch failure

9:50 am

Capitalism in space: Astra yesterday released an update on its investigation into its February 10th launch failure at Cape Canaveral.

The update doesn’t provide any conclusions, but merely notes that the company has completed its review of all “video and telemetry” from the event, and has reconstructed a full timeline from that data.

It is now reviewing that timeline to create what engineers call “fault trees”, each a specific scenario path pointing at a possible cause of the failure. Once that cause has been identified, engineers can then propose a solution.

According to the press release, the company is already “implementing corrective actions”, though the release provides no information as to what the cause was or what they are doing to correct. It states instead that once the investigation and corrections have been completely, the company will then release a full report.

Meanwhile, it appears that at least six law firms are considering suing the company, which became a publicly traded company in July 2021. These law firms “…are seeking clients who lost significant amount of money after purchasing the stock.” The launch failure caused the stock value to drop significantly, and these law firms apparently think that the company has made false claims about its plans — such as its claim that it will eventually be launch 300 times per year — and wish to put together a class action lawsuit based on this accusation plus the drop in stock price.

Whether Astra can meet its goal of 300 launches per year is certainly at this time questionable. However, it is too soon to call the company a failure. Once it recovers from the launch failure and resumes launches — a process that for any new rocket company generally takes a few years — that stock price will certainly recover, and will rise with each successful launch.

Only should Astra fail to resume launches, or continue to fail with each launch, will the stock truly crash, and thus provide these law firms with a possible case.

At the same time, in a free society we are supposed to recognize the concept of “buyer beware.” If you buy a product or a stock, it is at your own risk. If you fail to do due diligence beforehand, your loss is your responsibility, not the company who made the product or whose stock crashed.

It appears, based on everything Astra has so far done, an investment in its stocks while quite risky has not been an unreasonable gamble, making the present case for these lawsuits somewhat weak. Time will tell however whether that changes in the future.

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Curiosity’s coming travels across the rocky Greenheugh Pediment

10:31 am

Curiosity's view west on February 21, 2022 (Sol 3393)
Click for full resolution panorama. Original images can be found here, here, and here.

Overview map
Click for interactive map.

Curiosity, having successfully climbed up and out of Gordon Notch, was able to aim its navigation cameras forward yesterday and get its first views from this position across the very rocky Greenheugh Pediment to its next major goal, Gediz Vallis Ridge. The panorama above, taken by the rover’s right navigation camera, shows this view. The ridge is about 1,500 feet away, at its closest point. The rim of Gale Crater, barely visible in the haze, is about 20-30 miles away.

The overview map to the right indicates the area covered in this panorama by the yellow lines. The red dotted line indicates Curiosity’s planned future route.

Curiosity’s first view of the pediment was made in March 2020, from a point on its northern border, just beyond the top edge of the map. The panorama taken then showed what appeared to be a very treacherous and rough surface, possibly too rough for Curiosity to traverse.

According to the science team’s most recent update from before the holiday weekend, the plan had been to spend February 19-20 studying the ground, then drive a short distance yesterday to get a better view ahead.

This will give us a good vantage point to look into the valley ahead and try to scope out our future route. … We chose to drive about 10m total, in order to get the rover oriented at a good heading and parked in a good spot. We expect a similarly beautiful view from our post-drive imaging.

That view is the panorama above. Though still very rough, the ground ahead appears far more traversable than the surface seen in 2020.

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China denies the rocket stage about to hit the Moon comes from its rocket

9:23 am

A Chinese official yesterday claimed that the abandoned rocket stage that will hit the Moon on or about March 4th does not come from its 2014 Long March 3C rocket that tested technology for the later launched Chang’e-5 lunar sample return mission, as suggested by amateur astronomers and an engineer at JPL.

“According to China’s monitoring, the upper stage of the rocket related to the Chang’e-5 mission entered into Earth’s atmosphere and completely burned up,” Foreign Ministry spokesperson Wang Wenbin said Feb. 21.

Space tracking data from the Space Force’s 18th Space Control Squadron suggests that 2014-065B—the international designator for the rocket stage in question—reentered the atmosphere in October 2015, a year after launch, apparently backing China’s claim.

We are thus left with a mystery. If that abandoned upper stage did not come from either a SpaceX or Chinese launch, what launch did it come from? Or is it a rocket stage at all? Could it be a previously unidentified asteroid?

There is also the possibility that it is a piece from that Chinese launch, considering how the orbital data matches so well. The stage could have split or broken apart, with one part falling in the ocean as monitored by the Space Force, and the other section now heading for the Moon. If so, China is likely denying this fact for propaganda reasons.

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Northrop Grumman to launch new satellite serving mission in ’24 on Falcon 9

9:12 am

Capitalism in space: Northrop Grumman yesterday announced that it has awarded the contract for the first launch of its Mission Robotic Vehicle (MRV) — designed as a robot capable of installing multiple mission extension pods (MEP) on satellites — to SpaceX for a launch scheduled in 2024.

Once in orbit each MEP [Mission Extension Pod] is captured by the MRV and stowed for transport to the client satellite. The MRV rendezvous and docks with the client to install the MEP, which operates like an auxiliary propulsion device and uses its own thrusters to maneuver the client vehicle. Then the MRV detaches itself and moves on to grab another MEP for the next customer. The MRV is designed to stay in orbit for 10 years.

Anderson said the company expects to install as many as 30 propulsion pods over the life of the MRV.

“Our manifest for the MRV is full through mid 2026,” he said. Besides Optus, five other customers have signed term sheets to purchase mission extension pods.

Essentially, Northrop Grumman upgraded its Mission Extension Vehicle design to separate the repair section from the robot that installs it so that it is cheaper to launch everything. It can now launch multiple lighter and smaller repair pods as needed, with the robot already in orbit ready to go.

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Deformed Martian craters

2:04 pm

Deformed Martian craters
Click for full image.

Cool image time! The picture to the right, rotated, cropped, and reduced to post here, was taken on September 3, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The focus of the image for the MRO science team were the wedding cake layers inside the largest crater. These layers suggest glacial ice, with the layers suggesting multiple cycles of glacial ebb and flow. Since the crater is at 43 degrees north latitude, and sits in the chaos region dubbed Protonilus Mensae, smack dab in the center of what I call Mars’ glacier country, this conclusion makes perfect sense.

To my eye, however, the most interesting feature of this photo are the many distorted craters. The overview map below shows the picture’s location, as well as several nearby very large impact craters which might have caused many secondary impacts, including the many craters at this location.
» Read more

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Northrop Grumman launches Cygnus freighter to ISS

8:29 am

Capitalism in space: Northrop Grummann yesterday used its Antares rocket to successfully launch its Cygnus freighter to ISS.

This fact about this Cygnus is important:

This is the first Cygnus mission featuring enhanced capabilities to perform a re-boost to the space station’s orbit as a standard service for NASA; one re-boost is planned while Cygnus is connected to the orbiting laboratory.

In other words, Cygnus has been enabled to replace the boost capability that the Russians and Japanese provided.

The 2022 launch race:

6 SpaceX
2 China
2 Russia
1 Virgin Orbit
1 ULA
1 India
1 Europe (Arianespace)
1 Northrop Grumman

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Virgin Galactic chairman resigns

8:54 am

Getting out while the getting is good: Chamath Palihapitiya, who has been chairman of Virgin Galactic’s board since it went public in 2019, suddenly announced today that he has resigned from the company.

Palihapitiya’s SPAC, or special purpose acquisition company, took Virgin Galactic public in October 2019. The company’s stock has faced volatile trading since then — climbing above $60 a share in the months ahead of Sir Richard Branson’s test spaceflight, but it recently fell below its public debut price on news of a further delay in the start of commercial service.

The now-former chairman sold his personal Virgin Galactic stake in early 2021 that was worth over $200 million at the time. But he indirectly owns about 15.8 million shares through Social Capital Hedosophia Holdings.

Like Richard Branson, Palihapitiya sold the majority of his stock when the price was high, about the time the company flew its first and only passenger flight in July, with Richard Branson on board. His exit now suggests he wants out before the company’s dismal future prospects become obvious.

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Hugging galaxies

2:25 pm

Hugging galaxies
Click for full image.

Cool image time! The Hubble Space Telescope science team today released the photo to the right, cropped and reduced to post here, of the interaction of three galaxies, the larger two of which look like they are hugging each other.

This galaxy triplet is estimated to be about just under 700 million light years away. It was taken as part of a program aimed at producing high quality images of strange looking galaxies.

Using Hubble’s powerful Advanced Camera for Surveys, astronomers took a closer look at some of the more unusual galaxies that volunteers identified. The original Galaxy Zoo project was the largest galaxy census ever carried out and relied on crowdsourcing time from more than 100,000 volunteers to classify 900,000 unexamined galaxies. The project achieved what would have been years of work for a professional astronomer in only 175 days and has led to a steady stream of similar astronomical citizen science projects. Later Galaxy Zoo projects have included the largest ever studies of galaxy mergers and tidal dwarf galaxies, as well as the discovery of entirely new types of compact star-forming galaxies.

If you want to do some real science, you should definitely check out the Galaxy Zoo webpage. Anyone can join in, using images produced by the Victor Blanco 156 inch (4 meter) telescope in Chile to find cool stuff that needs closer examination using better telescopes like Hubble.

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Gehrels-Swift returns to science operations

2:13 pm

The Gehrels-Swift orbiting space telescope has returned to full science operations, after engineers determined the shut down on January 18th was caused by the failure of one reaction wheel and uploaded software allowing the telescope to function using only its remaining five gyroscopes.

In the last two decades satellite engineers have developed a range of software to allow spacecraft to point with acceptable accuracy using as few as two gyroscopes, even one in some circumstances. Thus, Gehrels-Swift has significant margin with five working reaction wheels.

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