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SpaceX Crew Dragon spacecraft sails home after flawless in-flight abort test
SpaceX’s newest Crew Dragon spacecraft has successfully returned to port aboard one of the company’s dedicated recovery vessels, neatly wrapping up what appears to have been a completely flawless in-flight abort (IFA) test.
Designed to prove that Crew Dragon can safely escape a failing Falcon 9 rocket at essentially any point from the launch pad to orbit, SpaceX voluntarily chose to perform a full-fidelity IFA test – something NASA left up to both it and Boeing. Boeing instead decided to extrapolate from a pad abort test – which SpaceX completed in 2015 – and a presumably large number of digital simulations to verify that Starliner would survive an in-flight abort.
To be clear, NASA is explicitly okay with this, but space agency officials did not shy away from openly embracing the superiority of integrated flight testing at several points both before, during, and after SpaceX’s second Crew Dragon launch. Although it will almost certainly remain (publicly) unsaid, there should be little doubt that for astronauts scheduled to fly on either Crew Dragon and Starliner, the successful completion of in-flight abort and pad abort tests almost certainly engenders at least a little more confidence in the vehicle they will be entrusting their lives to.
It’s worth noting that although NASA argues – perhaps soundly – that digital modeling, a pad abort test, and an orbital flight test are enough to determine whether any given spacecraft is safe enough to launch US astronauts, the unspoken reality – or at least a large part of it – is that cost is a major concern. At this point in time, NASA’s Commercial Crew Program (CCP) contracts are expected to cost a total of $3.1B for SpaceX and $5.1B for Boeing – both including at least four total orbital launches of their respective spacecraft.
In simpler terms, despite the fact that SpaceX has received a full $2 billion (~40%) less than Boeing to accomplish the same tasks in the same time, SpaceX’s Crew Dragon completed a flawless orbital launch debut and space station rendezvous with Crew Dragon almost 10 months before Boeing’s Starliner suffered a serious partial failure in space. Simultaneously, for $2 billion less, SpaceX has now given NASA a seemingly flawless full-up in-flight abort test of Crew Dragon before the space agency will fully entrust the spacecraft with the safety of its astronauts.
In the last 10 or so weeks, Boeing has thus suffered a minor Starliner parachute failure, a far more concerning spacecraft failure during its first orbital flight test (OFT), has no plans to perform an in-flight abort test, and nevertheless still wants Starliner’s next launch to carry NASA astronauts.
A clear path ahead
SpaceX, on the other hand, has now completed two seemingly-flawless integrated launches of Crew Dragon on a Falcon 9 rocket – one of which successfully rendezvoused with the ISS and returned to Earth; the other of which has now proven that Crew Dragon can whisk astronauts to safety from a failing supersonic rocket. SpaceX says it will carefully inspect capsule C205 and eventually refurbish the spacecraft, although it’s entirely unclear what kind of mission the company could foreseeably reuse it on in the near future.
Speaking shortly after Crew Dragon’s second flawless launch, SpaceX CEO Elon Musk said that he had spoken with NASA administrator Jim Bridenstine just prior to the post-launch press conference and together came up with a response to the most obvious question: when will SpaceX fly astronauts? In short, Musk was almost certain that all the hardware needed for the Demo-2 astronaut test flight – Falcon 9 booster, F9 upper stage, Crew Dragon capsule C206, and a Dragon trunk – will be completed, tested, and delivered to Cape Canaveral by late-February 2020.
If everything goes exactly as planned, NASA – prior to launch – indicated that an early-March 2020 launch was actually within reach. After launch, Musk tempered expectations, stating that SpaceX would almost certainly launch its first NASA astronauts sometime in Q2 – perhaps as early as April. Regardless, it looks like we wont have to wait more than a few months to find out.
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Elon Musk
Tesla confirms that work on Dojo 3 has officially resumed
“Now that the AI5 chip design is in good shape, Tesla will restart work on Dojo 3,” Elon Musk wrote in a post on X.
Tesla has restarted work on its Dojo 3 initiative, its in-house AI training supercomputer, now that its AI5 chip design has reached a stable stage.
Tesla CEO Elon Musk confirmed the update in a recent post on X.
Tesla’s Dojo 3 initiative restarted
In a post on X, Musk said that with the AI5 chip design now “in good shape,” Tesla will resume work on Dojo 3. He added that Tesla is hiring engineers interested in working on what he expects will become the highest-volume AI chips in the world.
“Now that the AI5 chip design is in good shape, Tesla will restart work on Dojo3. If you’re interested in working on what will be the highest volume chips in the world, send a note to AI_Chips@Tesla.com with 3 bullet points on the toughest technical problems you’ve solved,” Musk wrote in his post on X.
Musk’s comment followed a series of recent posts outlining Tesla’s broader AI chip roadmap. In another update, he stated that Tesla’s AI4 chip alone would achieve self-driving safety levels well above human drivers, AI5 would make vehicles “almost perfect” while significantly enhancing Optimus, and AI6 would be focused on Optimus and data center applications.
Musk then highlighted that AI7/Dojo 3 will be designed to support space-based AI compute.
Tesla’s AI roadmap
Musk’s latest comments helped resolve some confusion that emerged last year about Project Dojo’s future. At the time, Musk stated on X that Tesla was stepping back from Dojo because it did not make sense to split resources across multiple AI chip architectures.
He suggested that clustering large numbers of Tesla AI5 and AI6 chips for training could effectively serve the same purpose as a dedicated Dojo successor. “In a supercomputer cluster, it would make sense to put many AI5/AI6 chips on a board, whether for inference or training, simply to reduce network cabling complexity & cost by a few orders of magnitude,” Musk wrote at the time.
Musk later reinforced that idea by responding positively to an X post stating that Tesla’s AI6 chip would effectively be the new Dojo. Considering his recent updates on X, however, it appears that Tesla will be using AI7, not AI6, as its dedicated Dojo successor. The CEO did state that Tesla’s AI7, AI8, and AI9 chips will be developed in short, nine-month cycles, so Dojo’s deployment might actually be sooner than expected.
Elon Musk
Elon Musk’s xAI brings 1GW Colossus 2 AI training cluster online
Elon Musk shared his update in a recent post on social media platform X.
xAI has brought its Colossus 2 supercomputer online, making it the first gigawatt-scale AI training cluster in the world, and it’s about to get even bigger in a few months.
Elon Musk shared his update in a recent post on social media platform X.
Colossus 2 goes live
The Colossus 2 supercomputer, together with its predecessor, Colossus 1, are used by xAI to primarily train and refine the company’s Grok large language model. In a post on X, Musk stated that Colossus 2 is already operational, making it the first gigawatt training cluster in the world.
But what’s even more remarkable is that it would be upgraded to 1.5 GW of power in April. Even in its current iteration, however, the Colossus 2 supercomputer already exceeds the peak demand of San Francisco.
Commentary from users of the social media platform highlighted the speed of execution behind the project. Colossus 1 went from site preparation to full operation in 122 days, while Colossus 2 went live by crossing the 1-GW barrier and is targeting a total capacity of roughly 2 GW. This far exceeds the speed of xAI’s primary rivals.
Funding fuels rapid expansion
xAI’s Colossus 2 launch follows xAI’s recently closed, upsized $20 billion Series E funding round, which exceeded its initial $15 billion target. The company said the capital will be used to accelerate infrastructure scaling and AI product development.
The round attracted a broad group of investors, including Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX, and Baron Capital Group. Strategic partners NVIDIA and Cisco also continued their support, helping xAI build what it describes as the world’s largest GPU clusters.
xAI said the funding will accelerate its infrastructure buildout, enable rapid deployment of AI products to billions of users, and support research tied to its mission of understanding the universe. The company noted that its Colossus 1 and 2 systems now represent more than one million H100 GPU equivalents, alongside recent releases including the Grok 4 series, Grok Voice, and Grok Imagine. Training is also already underway for its next flagship model, Grok 5.
Elon Musk
Tesla AI5 chip nears completion, Elon Musk teases 9-month development cadence
The Tesla CEO shared his recent insights in a post on social media platform X.
Tesla’s next-generation AI5 chip is nearly complete, and work on its successor is already underway, as per a recent update from Elon Musk.
The Tesla CEO shared his recent insights in a post on social media platform X.
Musk details AI chip roadmap
In his post, Elon Musk stated that Tesla’s AI5 chip design is “almost done,” while AI6 has already entered early development. Musk added that Tesla plans to continue iterating rapidly, with AI7, AI8, AI9, and future generations targeting a nine-month design cycle.
He also noted that Tesla’s in-house chips could become the highest-volume AI processors in the world. Musk framed his update as a recruiting message, encouraging engineers to join Tesla’s AI and chip development teams.
Tesla community member Herbert Ong highlighted the strategic importance of the timeline, noting that faster chip cycles enable quicker learning, faster iteration, and a compounding advantage in AI and autonomy that becomes increasingly difficult for competitors to close.
AI5 manufacturing takes shape
Musk’s comments align with earlier reporting on AI5’s production plans. In December, it was reported that Samsung is preparing to manufacture Tesla’s AI5 chip, accelerating hiring for experienced engineers to support U.S. production and address complex foundry challenges.
Samsung is one of two suppliers selected for AI5, alongside TSMC. The companies are expected to produce different versions of the AI5 chip, with TSMC reportedly using a 3nm process and Samsung using a 2nm process.
Musk has previously stated that while different foundries translate chip designs into physical silicon in different ways, the goal is for both versions of the Tesla AI5 chip to operate identically. AI5 will succeed Tesla’s current AI4 hardware, formerly known as Hardware 4, and is expected to support the company’s Full Self-Driving system as well as other AI-driven efforts, including Optimus.
Tesla confirms that work on Dojo 3 has officially resumed
Elon Musk’s xAI brings 1GW Colossus 2 AI training cluster online
