Tag: spaceflight

SLS’s 2nd mobile launcher to cost more than $1.5 billion, 3x what was initially budgeted

11:47 am

SLS's two mobile launchers, costing $1 billion
NASA’s bloated SLS mobile launchers

According to an inspector general report [pdf] released today, the second mobile launcher being built by the company Bechtel to transport its SLS rocket from the assembly building to the launch site is likely going to cost more than $1.5 billion, three times what was initially budgeted, and will not be completed any earlier than the end of 2027, four years behind schedule.

Compounding Bechtel’s projected cost increases and schedule delays, an ML-2 [mobile launcher-2] project analysis provided only a 3.9 percent confidence level that the nearly $1 billion cost [twice the original budget] and October 2025 [2.5 years late] delivery estimates were accurate. NASA requires projects to develop budgets and schedules consistent with a 70 percent joint cost and schedule confidence level (JCL), meaning a 70 percent likelihood the project will finish equal to or less than the planned costs and schedule. In fact, an Independent Review Team analysis determined the project would require an additional $447 million and 27 months, for a total contract value of $1.5 billion and a launcher delivery date of December 2027—a schedule that would enable an Artemis IV launch no earlier than the end of 2028.

The first mobile launcher, shown on the left in the graphic, cost more than $1 billion and will used only three times, at most. The second, on the right, is required for all of the assigned interplanetary tasks being given to the full size version of SLS beyond those first three test flights. Without it that version of SLS cannot launch. And even if the launcher is ready by 2028, as the IG report suggests, that will be more than a decade behind schedule, and six years from now.
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Amino acids found in asteroid samples brought back from Ryugu

10:01 am

Japanese scientists revealed this week that they have detected more than 20 types of amino acids in the asteroid samples brought back from Ryugu by the probe Hayabusa-2.

Kensei Kobayashi, professor emeritus of astrobiology at Yokohama National University, said the unprecedented discovery of multiple types of amino acids on an extraterrestrial body could even hint at the existence of life outside of Earth. “Proving amino acids exist in the subsurface of asteroids increases the likelihood that the compounds arrived on Earth from space,” he said.

It also means amino acids can likely be found on other planets and natural satellites, hinting that “life could have been born in more places in the universe than previously thought,” Kobayashi added.

Let me emphasize that this is not a discovery of life on Ryugu, only chemistry that is found in life on Earth. Such chemistry however can be found outside of life as well. What this detection suggests however that it is relatively common to produce such complex chemistry in hostile space environments, which increases greatly the possibility of life everywhere in the universe.

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Progress in completing the deployment of one of Lucy’s solar panels

9:45 am

Lucy solar panel graphic
Artist’s impression of solar panel

In the past month engineers for the Lucy asteroid mission have conducted a series of successful short tests to see if they can complete the unfolding of one of the probe’s two large solar panels.

On May 9, the team commanded the spacecraft to operate the array’s deployment motor using both the primary and back-up motor windings simultaneously to generate more torque, i.e. a harder pull. The motor operated as expected, further reeling in the lanyard that pulls the solar array open. After running the motor for a series of short intervals to avoid overheating, the team paused to analyze the results. Data from the spacecraft showed that the deployment was proceeding similarly to engineering ground tests, allowing the team to move forward with the second stage of the attempt. Analysis of the data also suggested that there was still additional lanyard to be retracted. The team sent the same commands again on May 12. Although this series of commands did not latch the solar array fully open, it did advance the deployment enough to increase the tension that stabilizes the arrays as was hoped.

On May 26, the spacecraft was again commanded to deploy the solar array. As in the first two attempts, both motor windings were operated simultaneously for short periods of time to avoid overheating. Afterwards the team again analyzed the data from the event, which again showed that the array was continuing to open. The team repeated the deployment command sequence a fourth time on June 2. While the array still did not latch, the data indicates that it continued to further deploy and stiffen throughout the attempt.

The graphic above illustrates the problem. The engineers will attempt further windings, and still hope the panel will open entirely and latch. If not, the stiffening suggests the panel will still stabilize in this open position, which up to now has been sufficient to produce about 90% of the power predicted and enough to complete the mission.

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Vulcan likely delayed until ’23

9:35 am

According to Eric Berger at Ars Technica, continuing delays with both the rocket’s payload and main engines, ULA’s Vulcan rocket will almost certainly not launch before the end of this year, as hoped by the company.

The rocket’s first stage BE-4 engines are being built by Blue Origin, and are already four years behind schedule. According to Berger’s sources, they will not be delivered to ULA until mid-August, which makes a launch in ’22 very unlikely, especially because both the engines and rocket are new, and will need time for fitting and further testing as a unit.

As for the payload, Berger’s assessment is not based on any new information. The payload, Astrobotic’s first lunar lander dubbed Peregrine, has also been experiencing delays, but the article provides no further information on whether it will miss its targets to be ready in ’22.

Regardless, it appears that Blue Origin is still dragging in its effort to build the BE-4 engine. If Vulcan cannot launch this year, it will threaten ULA’s long term future, since the company is depending on it to replace its Atlas-5 and Delta rockets. The delays now are allowing others to catch up and grab business that ULA might have garnered had Vulcan been operational as planned.

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Webb gets its first large micrometeoroid impact

9:18 am

In a carefully worded press release this week, NASA revealed that one segment of the primary mirror of the James Webb Space Telescope had been hit by a micrometeoroid.

Between May 23 and 25, NASA’s James Webb Space Telescope sustained an impact to one of its primary mirror segments. After initial assessments, the team found the telescope is still performing at a level that exceeds all mission requirements despite a marginally detectable effect in the data. Thorough analysis and measurements are ongoing. Impacts will continue to occur throughout the entirety of Webb’s lifetime in space; such events were anticipated when building and testing the mirror on the ground.

The reason such events were expected is because — unlike most telescopes (including Hubble) — Webb’s mirrors are not enclosed in a tube for protection. To do so would have made the telescope far too expensive to build or launch.

After describing in great detail all the work done prior to launch to anticipate such hits and deal with them, the press release then mentioned this fact almost as an aside:

This most recent impact was larger than was modeled, and beyond what the team could have tested on the ground.

Localized damage to the primary mirror of any telescope is not unusual. With ground-based telescopes such issues are not infrequent and easily worked around. The same applies to Webb. The engineers will calculate how to calibrate this particular segment to minimize distortion from the impact.

However, that the telescope experienced a hit larger than ever modeled, so soon after launch, suggests that those models were wrong, and that larger and more frequent hits can be expected. If so, this could be very worrisome, as over the long run it could shorten the telescope’s life in space significantly.

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Close-up on another flaky Martian rock

3:00 pm

Close-up on another flaky Martian rock
Click for full image.

Overview map
Click for interactive map.

Cool image time! The picture above, reduced to post here, was taken by Curiosity’s high resolution camera on June 5, 2022 (sol 3494). It shows a close up of another flaky rock near where the rover is presently sitting (the blue dot on the map to the right), similar to the one that I highlighted on May 28, 2022 but zoomed in closer.

Not only can you seen the layered flakes extending out from the rock’s main body, you can see what appear to be small deposits of material between the flakes, as if at one point the material was being placed here by condensation, either from the atmosphere or liquid.

The curvy rounded edges of the rock’s larger flakes could have been caused by the same process, or by long slow wind erosion over the eons since the flakes were formed.

The photo appears to be part of a larger mosaic that the rover’s science team is having the camera take of the strange geology that now surrounds Curiosity. The science team also appears to be continuing its beeline south towards the rover’s original planned route, indicated by the red dotted line on the map. The green dot marks the approximate location of a seasonal recurring dark streak on the cliffside, suggesting some form of seepage, while the white arrows mark a distinct layer that scientists have identified in many places on the flanks of Mount Sharp.

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SpaceX successfully launches Egyptian communications satellite

2:38 pm

Capitalism in space: SpaceX today successfully launched an Egyptian communications satellite using its Falcon 9 rocket.

The first stage completed its seventh flight, and landed safely on the drone ship in the Atlantic.

The leaders in the 2022 launch race:

23 SpaceX
18 China
8 Russia
3 Rocket Lab
3 ULA

The U.S. now leads China 32 to 18 in the national rankings, and the entire world combined 32 to 29.

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Jet streams on Jupiter

12:55 pm

Jet streams on Jupiter
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was created from a raw image from the Jupiter orbiter Juno by citizen scientist Sergio Diaz-Ruiz. As he notes in his caption:

Several jet streams at high latitude, near the north pole of the planet, crowned by clouds, contrast with a dark oval just over the center.

The original was taken on February 25, 2022 during Juno’s fortieth close approach to Jupiter. As Diaz-Ruiz notes, the contrast with the dark oval and the higher lighter clouds is striking. It is almost as if thermals rising over that oval are pushing the lighter clouds away.

This is only the fourth Juno image that Diaz-Ruiz has processed. All are quite stunning, and worth a look.

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Musk: Starlink will not go public until ’25 at the earliest

9:17 am

Capitalism in space: According to Elon Musk, a public sale of stock for the Starlink internet satellite constellation has now been pushed back another three to four years, and will not occur any earlier ’25.

His revised date means Starlink’s IPO has been delayed once again for another three years. In an email to SpaceX workers in 2019, also obtained by CNBC, Musk gave a three-year timeline for Starlink’s public offering, meaning an IPO could have taken place this year.

In 2020, Musk tweeted that Starlink would “probably IPO” in “several years.” He then tweeted in June 2021 that it would be “at least a few years before Starlink revenue is reasonably predictable” and taking it public any earlier would be “very painful.”

This quote however from Musk I think best describes his experience being in charge of a publicly traded company: “Being public is definitely an invitation to pain.”

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Rogozin suggests Russia will stay on ISS till at least ’24

9:10 am

In remarks this past weekend on Russian television, Roscosmos head Dmitry Rogozin said that Russia now plans to continue its international partnership on ISS till at least 2024.

“The ISS will work exactly as long as the Russian side needs to work on it,” Rogozin said. “There are technical problems. The station has been operating beyond its lifespan for a long time. We have a government decision that we are working until 2024.”

…Earlier this year, it was reported by some media outlets that Russia was planning to quit the ISS, blaming Western sanctions, following comments Rogozin made on state television. Rogozin said: “The decision has been taken already, we’re not obliged to talk about it publicly. I can say this only—in accordance with our obligations, we’ll inform our partners about the end of our work on the ISS with a year’s notice.”

The Russian government is presently attempting to develop its own space station for launch before the end of this decade. Since such Russian projects have for decades routinely been delayed, for decades, it is likely that the Putin government has decided that it is better to stay on ISS for the moment then quit and have no space station at all.

Russia has also been negotiating with China to partner with it on China’s space station. While China says it is willing, it also appears entirely uninterested in committing any of its funds to help Russia. It might allow a Russia astronaut to visit its station at some point, but that would likely be the limit of that space station partnership.

All in all, Russia’s space effort faces a dim future. ISS is going to be replaced with several private commercial stations owned by American companies, none of which want to partner with Russia. And Russia doesn’t really have the funds to build its own station. Nor does it have a competitive aerospace industry capable of developing its own stations.

Unless something significant changes soon, Russia’s place in space will shrink considerably in the next ten years.

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Russian company S7 ends project to build private rocket

8:50 am

The Russian company S7 has ended its project to build a private rocket, citing lack of funds and a dearth of Russian investors.

Due to a lack of opportunity to raise funding, the project to create a light-class carrier rocket has been suspended,” the press service said.

The company said that was the reason why it let go some of its staff – 30 people out of more than 100 – in June. “Still, S7 Space continues to operate in some areas, such as additive and welding technologies where work is underway,” it said.

S7 first announced this rocket project in 2019. Development was suspended in 2020, however, when the Putin government imposed new much higher fees on the company for storing the ocean launch platform Sea Launch, fees so high that the company was soon negotiating to sell the platform to a Russian state-run corporation.

At the moment it appears that while Russia has possession of the Sea Launch ocean floating launch platform, it has nothing to launch from it. Nor does there appear to be any Russia project that might eventually do so. The Putin government has quite successfully choked off S7 — fearing the competition it would bring to Roscosmos — and with it any other new rocket company.

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France signs Artemis Accords

8:35 am

The U.S. State Department yesterday announced that France has become the twentieth nation to sign the Artemis Accords.

The full list of signatories so far: Australia, Bahrain, Brazil, Canada, Columbia, France, Israel, Italy, Japan, Luxembourg, Mexico, New Zealand, Poland, Romania, Singapore, South Korea, the United Kingdom, the United Arab Emirates, the Ukraine, and the United States.

France’s signing is a major breakthrough, as both it and Germany, major players in the European Space Agency, have appeared to resist signing on because to do so would have limited their ability to partner with Russia on space projects (Russia opposes the accords). The Ukraine War has apparently ended France’s resistance. It no longer has any partnerships with Russia, and is not likely to form any new ones in the near future.

We should expect Germany to sign on in the near future as well.

As I wrote in May, the future factions in space are now becoming clearer. On one side we have the American Alliance, signers of the accords who support private property. On the other we have Russia and China, who oppose the accords because they also oppose private property.

In May I also included a third faction, made up of non-aligned space powers. That faction now appears to be fading away, though it still includes Germany and India.

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France re-approves Starlink service

8:56 am

Capitalism in space: After finally completing what France’s telecom bureaucracy ARCEP calls “a public consultation,” the French government once again approved Starlink service on June 2nd.

ARCEP had authorized Starlink in February 2021, however, France’s highest administrative court revoked the license April 5 after ruling that the regulator should have first launched a public consultation.

That ruling came after two French environmental activist organizations submitted an appeal to challenge Starlink’s frequency rights, citing concerns including the impact of megaconstellations on views of the night sky and space debris.

This approval, combined with recent approvals of Starlink in the Philippines and Nigeria, continues the steady expansion of Starlink service globally.

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Woman arrested for trespassing at SpaceX’s Boca Chica facility

8:45 am

A Pittsburgh woman, Nivea Rose Parker, 20, was arrested on June 1, 2022 while trespassing at SpaceX’s Boca Chica facility.

SpaceX security personnel informed deputies a woman, later identified as Parker, was roaming around the fifth floor of the High Bay #1 building. Parker claimed to be an employee of SpaceX and wanted to speak to Elon Musk, security said. [emphasis mine]

Very little additional information has been made available. However, that Parker could get so far into one building, where rockets are assembled, is quite worrisome, considering the “hate Musk” campaign that is growing on the left. These people willfully riot and bomb facilities. SpaceX must take this trespass as a warning that worst could happen if it doesn’t tighten security at all its facilities, especially Boca Chica.

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Fuel leak scrubs launch of Dragon cargo capsule this week

8:52 pm

A fuel leak detected during fueling of hydrazine in a Dragon cargo capsule as it was being prepared for a June 10th launch has forced SpaceX and NASA to delay the launch.

SpaceX detected “elevated vapor readings” of monomethyl hydrazine, or MMH, fuel in an “isolated region” of the Dragon spacecraft’s propulsion system during propellant loading ahead of this week’s launch, NASA said in a statement.

The fueling of the Dragon spacecraft is one of the final steps to prepare the capsule for flight, and typically occurs just before SpaceX moves the craft to the launch pad for integration with its Falcon 9 rocket.

The Dragon spacecraft has propellant tanks containing hydrazine fuel and nitrogen tetroxide oxidizer. The two propellants ignite upon contact with each other, providing an impulse for the cargo ship’s Draco thrusters used for in-orbit maneuvers.

Each Dragon spacecraft has 16 Draco thrusters, small rocket engines that generate about 90 pounds of thrust. The Draco engines are used for orbit adjustment burns and control the spacecraft’s approach to the space station, then fire at the end of the mission for a deorbit burn to guide the capsule back into the atmosphere for re-entry and splashdown.

According to the article, it is not yet confirmed that the leak came from the capsule. If so, however, it could become a more serious issue, especially with the recent story — denied strongly by NASA — that a hydrazine leak caused damage to the heat shield of Endeavour during the return of its Axiom commercial passenger flight.

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Spiders galore on Mars!

2:36 pm

Spiders galore on Mars
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken on February 27, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and shows a nice collection of what scientists have informally (but permanently) labeled as spiders, strange formations that exists only in the regions of the Martian south pole.

The spiders are believed to have formed because of the coming and going of the dry ice mantle in the polar regions that falls as snow in the winter and then sublimates away come the spring. Because dry ice is mostly clear, the spring sunlight penetrates it and warms the underlying surface, which acts to warm the base of the dry ice mantle. CO2 gas builds up, trapped below the dry ice, until the pressure causes it to break the dry ice at a weak point and spew outward, carrying with it dust that blackens the surface above. You can see three examples in today’s image.

Spiders however only happen at the south pole. In the north much of the terrain is formed by unstable dunes, which change from year to year, thus causing the gas breakage to occur at random and different spots.

In the south however the terrain is more stable, a surface of ice and dirt. The spiders form because the trapped gas always follows the same path from year to year to the same weak points, carving riverlike tributaries until these feeders combine and build up enough gas pressure to crack the overlying dry ice so that the gas can escape.

Though the gas functions much like a river of water, it has one fundamental difference that makes this phenomenon wholly Martian and quite alien. On Earth rivers flow downhill. On Mars, the gas in these spider tributaries is flowing upward, seeking a path into the atmosphere above.

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China launches three astronauts to Tiangong station

8:42 pm

The new colonial movement: Using its Long March 2F rocket, China has successfully launched three astronauts into orbit for a six month mission to its Tiangong space station.

The crew will be transported to the station in China’s Shenzhou capsule, docking about six hours after launch. During this mission China will also launch the last two large modules planned for the station, completing its initial construction by the end of the year.

I have embedded the live stream below the fold, cued to just before launch.

The leaders in the 2022 launch race:

22 SpaceX
18 China
8 Russia
3 Rocket Lab
3 ULA

The U.S. still leads China 31 to 18 in the national rankings, as well as the entire globe combined, 31 to 29.

» Read more

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Russia to take control of German telescope on space orbiter

9:12 am

Dmitry Rogozin, the head of Roscosmos, revealed today that he has issued orders for the scientists running the Spektr-RG telescope to figure out how to take over operations of the German instrument on the telescope.

“I gave instructions to start work on restoring the operation of the German telescope in the Spektr-RG system so it works together with the Russian telescope,” he said in an interview with the Rossiya-24 TV channel.

The head of Roscosmos said the decision was necessary for research. “They – the people that made the decision [to shut down the telescope] don’t have a moral right to halt this research for humankind just because their pro-fascist views are close to our enemies,” he said.

The Europeans had shut down operations when it broke off all of its space partnerships with Russia, following the Ukraine invasion and the decision of Russia to confiscate 36 OneWeb satellites rather than launch them as it was paid to do.

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Sunspot update: In May we had sunspots, sunspots, and more sunspots!

10:31 am

It is time for another sunspot update! On June 1 NOAA released its monthly update of its graph tracking the number of sunspots on the Sun’s Earth-facing hemisphere. As I do every month, I have posted it below, having added some addition details to provide a larger context.

In May the sunspot activity on the Sun almost literally exploded, producing some of the strongest solar flares in years as well as the most sunspots since the previous solar maximum in 2014. On several days there were as many as eight sunspot groups on the Sun, with one so large that it was visible to the naked eye on Earth (if viewed properly with a protective filter).
» Read more

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India’s first private satellite manufacturing facility opens

10:31 am

Capitalism in space: At a ceremony today that included officials from the government, the private commercial company ANANTH opened India’s first private satellite manufacturing facility.

Located at Karnataka Industrial Area Development Board Aerospace Park, Bengaluru, the new establishment is equipped with clean rooms for spacecraft sub-systems manufacturing and is large enough to cater to four spacecraft simultaneously.

This unveiling is part of India’s effort to transition from a government-built space effort to one run by the private sector. In the past all satellite construction in India was designed, managed, and owned by India’s space agency ISRO. This facility will now take over that function, and do so not only for ISRO but for any private company that wishes to have a satellite built.

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A rock stows away on Perseverance

10:24 am

Perseverance's stowaway
Click for full image.

Since early February the Mars Rover Perseverance has been toting with it a small rock in its front left wheel, as shown in the image to the right, cropped and reduced to post here and taken by the rover’s left hazard avoidance camera on February 6, 2022.

From an update today by the Perseverance science team:

Back on sol 341— that’s over 100 sols ago, in early February— a rock found its way into the rover’s front left wheel, and since hitching a ride, it’s been transported more than 5.3 miles (8.5 km). This rock isn’t doing any damage to the wheel, but throughout its (no doubt bumpy!) journey, it has clung on and made periodic appearances in our left Hazcam images.

You can see the most recent photo of the rock, taken on May 26, 2022, here. It is very clear that the rock’s repeated tumbling inside the wheel well has worn away its sharp edges as well as reduced its overall size. Given enough time its surface could even become somewhat smooth.

As the update notes, when this rock finally drops off it will create a potential mystery for future geologists, who if they are not aware that Perseverance moved it, will wonder how it got where it was, being geologically out-of-place in its new location.

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NASA awards Axiom & Collins Aerospace contracts to build spacesuits

10:07 am

Capitalism in space: NASA yesterday awarded separate contracts to two different companies, Axiom and Collins Aerospace, to build spacesuits for its astronauts, either when they do spacewalks in space or when they are exploring the lunar surface.

The contract enables selected vendors to compete for task orders for missions that will provide a full suite of capabilities for NASA’s spacewalking needs during the period of performance through 2034. The indefinite delivery and indefinite quantity, milestone-based xEVAS contract has a combined maximum potential value of $3.5 billion for all task order awards. The first task orders to be competed under the contract will include the development and services for the first demonstration outside the space station in low-Earth orbit and for the Artemis III lunar landing.

Each partner has invested a significant amount of its own money into development. Partners will own the spacesuits and are encouraged to explore other non-NASA commercial applications for data and technologies they co-develop with NASA.

More information can be found in each companies’ press release, located here (Axiom) and here (Collins).

These commercial contracts replace NASA’s own failed effort to make its own Artemis spacesuits, which spent fourteen years and more than a billion dollars before being abandoned by the agency because wouldn’t be able to deliver anything on time.

The contracts also continue NASA’S transition — as recommended in my 2017 policy paper Capitalism in Space [pdf] — from a failed space contractor to merely being the customer buying products from the commercial sector. The result is we now have a vibrant and ever growing private space sector with products available quickly and cheaply not only for NASA, but for others. The Axiom press release illustrates these facts with this quote:

The Axiom spacesuit is key to the company’s commercial space services. This new NASA contract enables Axiom to build spacesuits that serve the company’s commercial customers and future space station goals while meeting NASA’s ISS and exploration needs.

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SpaceX wins more NASA manned flights to ISS

9:52 am

Capitalism in space: NASA has now announced that it is buying five additional manned missions to ISS from SpaceX, beginning in ’26.

This new contract is in addition to a February ’22 NASA award that purchased three more Dragon flights.

After a thorough review of the long-term capabilities and responses from American industry, NASA’s assessment is that the SpaceX crew transportation system is the only one currently certified to maintain crewed flight to the space station while helping to ensure redundant and backup capabilities through 2030.

The current sole source modification does not preclude NASA from seeking additional contract modifications in the future for additional transportation services as needed.

The press release repeatedly makes it clear that NASA very much wishes to buy tickets on Boeing’s Starliner, but until it is declared operational it must give its business to SpaceX. Once Starliner begins flying, NASA will then buy seats on it and alternate between the two companies. Until then however this new SpaceX contract guarantees NASA enough flight capacity to keep ISS occupied, even if Starliner gets further delayed.

Regardless, Boeing has once again lost business to SpaceX because its Starliner capsule is not yet ready. In the long run this contract means fewer total flights for Boeing to ISS, which means less profits.

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MAVEN returns to full operation

9:42 am

NASA announced yesterday that engineers have finally completely restored its Mars orbiter MAVEN, after a three month period when the spacecraft was in safe mode due to an attitude control problem.

To fix the problem engineers uploaded new software that allowed the spacecraft to determine its orientation in space not from its onboard inertial units, but from locking onto stars in the sky.

All instruments were healthy and successfully resumed observations; however, the spacecraft was constrained to pointing at the Earth until testing of all-stellar mode was completed, so the instruments were not oriented as they normally would be during science operations. Nevertheless, some limited science was still possible, and MAVEN even observed a coronal mass ejection impact Mars less than two days after the instruments were powered on.

Moreover, for some parts of the year it will still need its inertial units, so a fix for those time periods is still required.

Regardless, MAVEN can now resume acting as a communications relay between the Earth and the rovers on Mars, which for the past year has become its prime mission. While both rovers can communication without that relay, it is often necessary depending on a number of factors, and it also provides redundancy and a greater communications capacity.

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Ursa Major announces new rocket engine to replace what Russia previously provided

9:32 am

Capitalism in space: The new rocket engine company Ursa Major yesterday announced a new more powerful rocket engine, dubbed Arroway, designed to replace rocket engines that Russia had been selling.

Arroway is a 200,000-pound thrust liquid oxygen and methane staged combustion engine that will serve markets including current U.S. national security missions, commercial satellite launches, orbital space stations, and future missions not yet conceived. The reusable Arroway engine is available for order now, slated for initial hot-fire testing in 2023, and delivery in 2025.

Notably, Arroway engines will be one of very few commercially available engines that, when clustered together, can displace the Russian-made RD-180 and RD-181, which are no longer available to U.S. launch companies.

Arroway could replace the RD-181 engines that Northrop Grumman uses on the first stage of its Antares rocket. Both engines are comparable in size. However, with Arroway available no sooner than ’25 it still will leave a gap, since right now the company only has enough stock on hand to launch two more rockets, both of which should launch before ’24.

Arroway is also about half as powerful as Blue Origin’s BE-4 engine, so if ULA wishes to use it in its Vulcan rocket a major redesign would be required.

Either way, Ursa Major is demonstrating here again the value of freedom and competition, as well as the foolishness and negative consequences of Russia’s invasion of the Ukraine. In response to the international sanctions against it, Russia blocked future rocket engine sales to the U.S. Not only did that not get the sanctions lifted, Russia is now losing that U.S. business, as other American companies are stepping up to replace it.

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China launches nine satellites for commercial data constellation

9:16 am

China today used its Long March 2C rocket to launch the first nine satellites in a commercial data collection constellation.

Owned by GeeSpace, a subsidiary of Geely Technology Group, the satellite constellation will be mainly used to research and validate technologies, such as travel services of intelligent connected vehicles, and vehicle/mobile phone and satellite interaction. It will also provide data support for marine environmental protection.

The leaders in the 2022 launch race:

22 SpaceX
17 China
7 Russia
3 Rocket Lab
3 ULA

The U.S. still leads China 31 to 17 in the national rankings, and the entire world combined 31 to 27.

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Curiosity on a steep slope

11:57 am

null
Click for full panorama.

Overview map
Click for interactive map.

Cool image time! The panorama above, cropped, reduced, and enhanced to post here, was compiled from 29 photos taken on May 31, 2022 by the right navigation camera on the Mars rover Curiosity. It shows the steepness of the slope that the rover ended up parking on yesterday after it completed its drive. As noted in today’s rover update by Abigail Fraeman, Planetary Geologist at NASA’s Jet Propulsion Laboratory:

Curiosity starts the plan parked at an impressive 17˚ pitch (front up) and 17˚ roll (left up) for a total 24˚ tilt. You can get a bit of a sense of the rover’s non-horizontal position by looking at its orientation with respect to the ground in the above Navcam mosaic. Even though this slope is getting close to the limit of what Curiosity can traverse, we don’t think we’ll have any problems unstowing the arm or driving the rest of the way to the top because of the terrain we’re on – nice smooth bedrock with only a thin sand cover is almost the Martian equivalent of a paved road.

On the far right of the image you can also see Curiosity’s tracks. The rover had first approached this slope about 80 feet to the west, then backed off slightly to parallel the slope as it came east and then turned uphill. In the far far distance can be seen the rim of Gale Crater, about about 30 miles away and obscured by the atmosphere’s winter dust.

The overview map above shows Curiosity’s location with the blue dot. The approximate area covered by the section of the panorama above is indicated by the yellow lines. The red dotted line shows the rover’s original planned route. The white arrows indicate what the scientists have dubbed the “marker horizon,” a distinct layer found in many places on the flanks of Mount Sharp that they are very eager to study up close. The green dot marks the approximate location of a recurring slope lineae, a place where the cliff is seasonally darkened by a streak that appears each spring and then fades.

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