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SpaceX Falcon Heavy payload arrives in Florida for the first time in years
For the first time in almost three years, a spacecraft meant to launch on SpaceX’s Falcon Heavy rocket has arrived in Cape Canaveral, Florida and begun to prepare for flight.
Known as Psyche, the scientific mission is designed to venture hundreds of millions of miles from Earth to explore a namesake asteroid that’s believed to be almost entirely metallic. Psyche will also mark NASA’s first operational use of Falcon Heavy, which offers performance far superior to other existing and soon-to-be-retired rockets and at a fraction of their cost.
However, even though Psyche is now the first payload (officially confirmed) to have arrived in Florida for a Falcon Heavy launch since May or June 2019, that doesn’t guarantee that it will be first to launch.
That uncertainty is the result of multiple chronically delayed US military payloads that were both supposed to launch on different Falcon Heavy rockets as early as late 2020. In June 2018, just four months after Falcon Heavy’s iconic launch debut, the US military purchased its first operational launch on the rocket. Known as AFSPC-52 and later renamed USSF-52 after the US government cobbled together a few loosely-related military groups and rebadged them as the “Space Force,” the mission was expected to launch as early as September 2020. In February 2019, the military announced that another Falcon Heavy rocket had been chosen to launch AFSPC-44 (USSF-44) as early as late 2020 or early 2021.
About a year ago, for unknown reasons, USSF-44 took USSF-52’s place as the US military’s first operational Falcon Heavy launch. Now, between three and four years after their initial launch targets, USSF-44 is scheduled to launch NET late June 2022 (a delay of ~18 months) and USSF-52 is set to follow as soon as October 2022 (a delay of ~25 months).
On April 29th, NASA’s Launch Service Program (LSP) revealed that the ~2600-kilogram (~5700 lb) Psyche spacecraft had completed the journey from the Jet Propulsion Laboratory’s (JPL) Pasadena, California assembly facilities to Kennedy Space Center, Florida. After several years of work spent designing, manufacturing, and assembling Psyche, the spacecraft ultimately arrived at on time, leaving it on track to launch on Falcon Heavy as early as August 1st, 2022.
At the moment, that makes Psyche’s launch far more likely to happen before USSF-44, which has repeatedly gotten within a few months of a purported launch target before the US military acknowledged additional delays. Like USSF-44, Psyche’s Falcon Heavy rocket – three boosters, an upper stage, and a fairing – will be entirely new. Due to the high performance required for each mission and the fact that both will be the first operational use of the rocket for NASA and the USSF, each brand-new Falcon Heavy center core will be intentionally expended.
If it launches more or less on time, USSF-44 will be SpaceX and Falcon Heavy’s first direct launch to geostationary orbit (GEO), requiring the rocket’s upper stage to survive a roughly six-hour-long coast and perform a lengthy orbit circularization burn around ~42,500 kilometers (~26,400 mi) above Earth’s surface. With a payload that weighs around four tons (~8800 lb), it’s little surprise that Falcon Heavy’s center core will be expended. Psyche, on the other hand, is headed into deep space on a trajectory that NASA’s own ELVPerf calculator – supplied with official performance data from SpaceX – says Falcon Heavy can launch more than four tons (~8800 lb) to while still recovering all three boosters. It’s unclear why NASA would need a 50-70% safety margin.
Regardless, the second half of 2022 could be quite the spectacle of Falcon Heavy launches after a more than three-year hiatus. On top of USSF-44, Psyche, and USSF-52, Falcon Heavy is tentatively scheduled to launch a ViaSat-3 communications satellite directly to GEO in Q3 2022 and, even more tentatively, the Space Force’s USSF-67 mission in November 2022.
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
