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One faulty valve led to failure of Astrobotic’s $108 million Peregrine lunar lander mission

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peregrine astrobotic ula vulcan. lunar laner loaded in nose of rocket

Astrobotic’s Peregrine lunar lander failed to reach the Moon due to an issue with a single valve within the propulsion system, according to a mission report released on Tuesday. Company executives said at a news conference that engineers had redesigned the valve and added redundancy to the propulsion system of the subsequent lander, Griffin, to make sure the problem wouldn’t repeat itself.

The report comes from a review board that met shortly after the tip of the Peregrine mission in January. That mission bumped into problems just hours after its Jan. 8 launch, when engineers fired up the spacecraft’s propulsion system for the primary time in orbit.

At that time, the fuel and oxidizer tanks must have been full of helium after opening two pressure control valves, or PCVs. But helium began to flow “uncontrollably” through the second valve into the oxidizer tank, Astrobotic CEO John Thornton explained during a news conference.

“This caused a significant and rapid overpressure of the tank,” he said. “Unfortunately, the tank ruptured and as a result, oxidizer leaked, which continued to leak for the rest of the mission.”

The PCV was unable to reseal, likely due to a mechanical failure attributable to “vibration-induced loosening” between some of the threaded components contained in the valve, said review board chairman John Horack. Telemetry data was able to pinpoint the placement and time of the anomaly, and the information was consistent with the PCV’s autonomous opening and shutting sequence and the valve’s position within the propulsion system. Engineers were also able to recreate the failure during ground testing.

While the oxidizer leak continued, the Astrobotic team managed to stabilize the spacecraft, charge the batteries, and power the payloads. However, the issue ultimately proved fatal to the mission, and after 10.5 days, the spacecraft returned to Earth and burned up within the atmosphere.

The 34-person review board included 26 company insiders and eight outsiders. The board analyzed not only the information collected throughout the mission, but additionally all the information from the flight qualification campaign and component tests. Ultimately, it was determined that the probable cause of the failure was the failure of a single helium PCV within the propulsion system.

Management also laid out a timeline of events leading up to the failure, starting in 2019, when Astrobotic signed a contract with an unnamed supplier to develop a drive power system. When that supplier began experiencing technical and provide chain issues due to the COVID-19 pandemic, Astrobotic made the choice in early 2022 to terminate the contract and complete the partially assembled power system itself.

“At this point, we had already made the decision to do the Griffin propulsion system in-house to do more vertical integration,” said Astrobotic mission director Sharad Bhaskaran. “We had already developed a lot of capabilities to do that propulsion integration. … That also reduced some of the risk in the Griffin program, which is much more complex than Peregrine.”

Astrobotic’s Peregrine lander in orbit.
Image sources: Astrobotic (opens in recent window)

However, Astrobotic engineers began to encounter problems with the unique supplier’s propulsion components—specifically, the PCVs. In August 2022, they switched to one other, unnamed PCV supplier, and people valves were installed on the lander.

The final set of propulsion system tests showed leaks in a single of the 2 PCVs—but not the one which ultimately leaked in orbit. That one performed well; the one which leaked was repaired. While Bhaskaran acknowledged that the second PCV had been identified “as a risk in our risk register” because the primary one leaked during testing, engineers ultimately deemed the failure minor, because the lander passed final acceptance testing.

The rationale for not replacing the second PCV was that it was situated much further back within the spacecraft and would require “extensive surgery” on the lander, invalidate final testing, and involve the extra risk of disassembly and reassembly.

Horack reiterated that the team’s decision-making was sound throughout: “I really found that when I looked at the team and what happened… I don’t see any decisions made in the lead-up to launch where I could say, ‘Hey, I think you should have done this differently.'”

These findings have already begun to inform development of the much larger Griffin lander, which is currently scheduled to launch to the moon before the tip of 2025. In addition to redesigning the valve, engineers have added a regulator to the propulsion system to control the flow of helium to the fuel and oxidizer tanks, in addition to backup latching valves as additional redundancy in case the PCV problem occurs again.

This article was originally published on : techcrunch.com
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Anthropic partners with Palantir and AWS to sell artificial intelligence to defense customers

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Anthropic Claude 3.5 logo

Anthropic on Thursday announced that it’s working with Palantir, a knowledge mining company, and Amazon Web Services (AWS) to provide U.S. intelligence and defense agencies with access to Anthropic’s Claude family of artificial intelligence models.

The news comes as an increasing variety of AI vendors seek to sign contracts with U.S. defense customers for strategic and fiscal reasons. Meta recently revealed that it’s sharing its llama models with defense industry partners, while OpenAI does searching establishing closer relations with the Department of Defense.

Anthropic’s head of sales, Kate Earle Jensen, says the corporate’s partnership with Palantir and AWS will “operationalize the use of Claude” on the Palantir platform, leveraging AWS hosting. Claude, which became available on the Palantir platform earlier this month, can now be utilized in Palantir’s defense-accredited Impact Level 6 (IL6) environment, hosted on AWS infrastructure.

The Department of Defense’s IL6 is reserved for systems containing data considered critical to national security and requiring “maximum protection” against unauthorized access and manipulation. Information in IL6 systems can reach the “secret” level – one step less top secret.

“We are proud to be a leader in bringing responsible AI solutions to classified environments in the U.S., increasing analytical capabilities and operational efficiency in key government operations,” Jensen said. “Access to Claude on Palantir on AWS will equip U.S. defense and intelligence organizations with powerful artificial intelligence tools that can quickly process and analyze massive amounts of complex data. This will dramatically improve intelligence analysis and decision-making for officials, streamline resource-intensive tasks and increase operational efficiency across all departments.”

This summer, Anthropic introduced select Claude models to AWS’s GovCloud service, signaling its ambition to expand its public sector customer base. (GovCloud is an AWS service designed for US government cloud workloads). Anthropic positions itself as a more security-conscious provider than OpenAI. However, the corporate’s terms of service allow it to use AI for tasks reminiscent of “legally authorized foreign intelligence analysis,” “identifying covert influence or sabotage campaigns,” and “providing advance warning of potential military activities.”

There is actually interest in artificial intelligence amongst government agencies. March 2024 Brookings Institute evaluation found 1,200% increase in government procurement related to artificial intelligence. But some branches, reminiscent of the US military, do slow implementation of this technology — and skeptical concerning the return on investment.

Anthropic, which has recently expanded into Europe, is he said conduct talks on obtaining a brand new round of financing value up to USD 40 billion. To date, the corporate has raised about $7.6 billion, including forward commitments. Amazon is by far the most important investor.

This article was originally published on : techcrunch.com
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Truecaller founders step down as spam blocker gains momentum

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The co-founders of Swedish caller ID app Truecaller are stepping back from day-to-day operations, ending an era for considered one of Sweden’s most successful consumer technology corporations as it pursues a goal of 1 billion users.

Alan Mamedi and Nami Zarringhalam, who co-founded Truecaller in 2009 and are pictured above, will hand over their responsibilities to Rishit Jhunjhunwale, the corporate’s chief product officer and head of its key India division, in January. Both founders will remain strategic advisors and board members.

The succession comes as Truecaller, which operates the eponymous call and spam blocking app, finds its feet after a difficult period, with third-quarter revenue rising 15% to SKr457.3 million ($42.3 million). More importantly, promoting revenues – which had been a cause for concern – rose 8% after several quarters of decline.

“We are approaching half a billion users and I am confident that we can reach one billion users within a few years,” Mamedi said in his last quarterly statement as CEO. “We are one of the few companies in the world whose product has managed to attract hundreds of millions of people. This is how we put Sweden on the world map. This achievement is something that my co-founder Nami and I are incredibly proud of.”

Jhunjhunwala, who joined the corporate in 2015 and holds Swedish citizenship despite his Indian roots, inherits an organization that’s finding its feet after a difficult post-IPO period. Truecaller, which went public in October 2021, dominates caller identification in emerging markets but in addition faces recent challenges in developed economies, particularly on Apple’s iPhone platform.

The group plans to launch what executives call the “biggest product improvement ever” for iOS this quarter, which can match some Android features. Although iPhone users make up just 7% of Truecaller’s base, they generate 40% of subscription revenue – a difference that highlights each future challenges and opportunities.

“I have been working closely with Alan and Nami since 2015 and I know this is a big challenge,” said Jhunjhunwala, who oversaw product development and the corporate’s two largest revenue streams.

The move comes as Truecaller shares have rallied greater than 70% from March lows, with JPMorgan analysts noting that recent market entries and emerging revenue streams could further boost growth.

However, challenges remain. The company is undergoing regulatory scrutiny in India, where it generates greater than 70% of its revenues. Recent reports suggest that Airtel’s recent spam blocking tool could threaten its dominance, although early reviews favor Truecaller’s offering.

The founders’ departure was announced alongside accelerated third-quarter results, which showed promising growth in strategic markets such as Colombia and Nigeria, where user numbers increased by 40% year-over-year. Subscription revenue within the U.S. grew greater than 60% as the corporate focused on converting users into paying customers.

“We have a fantastic management team in whom we have the utmost confidence,” Mamedi and Zarringhalam said in a joint statement. “With these elements, we are confident that the company is well-positioned for future success.”


This article was originally published on : techcrunch.com
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SpaceX will launch Starship for the sixth time this month

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SpaceX will conduct its sixth flight test of Starship, the largest rocket ever built, on November 18, following the successful success of its previous mission lower than a month ago.

The high flight cadence is due partially to this success, which included the first-ever return of the super-heavy booster to the launch site – where massive baton-shaped arms extending from the launch tower caught it in mid-air – and a controlled goal splashdown after the suborbital flight of the spacecraft’s upper stage on Indian Ocean. This sixth test covers a lot of the same objectives; this fact prompted the Federal Aviation Administration to approve each Flight 5 and 6 at the same time last month. Up until this point, SpaceX had to attend (sometimes months) for regulatory approval before each Starship launch.

In post in your websiteSpaceX says it will attempt to copy the same successes on November 18, including catching the booster at the launch site and accurately splashing down the spacecraft. The company will also proceed to check the heat shield and re-entry maneuvers “to expand the capabilities of the ship and boosters and move closer to enabling the entire system to be brought back online.” The engineer also made plenty of system improvements, including greater redundancy in the boosters, propulsion system, updated software controls and other changes.

SpaceX will also try and re-ignite considered one of the six Raptor engines in orbit, which will be a key opportunity to reuse Starship’s upper stage. Engineers will also test this stage in one other way: the company will test recent secondary thermal protection materials. Additionally, as the company put it, “the craft will intentionally fly at a higher angle of attack in the final phase of descent, intentionally emphasizing flap control limitations to obtain data on future landing profiles.”

All of this testing will culminate in “significant improvements” to the craft starting with Flight 7, comparable to redesigned flaps, larger fuel tanks and state-of-the-art thermal protection.

The live test webcast will begin roughly half-hour prior to the 30-minute launch window at 2:00 PM Pacific Time and might be viewed on the X or SpaceX website. SpaceX says this late afternoon launch window (which opens at 4 p.m. local time in Texas) will provide higher viewing conditions once it re-enters orbit.

This article was originally published on : techcrunch.com
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