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SpaceX record-setting booster returns to Port in remarkable condition (photos)
SpaceX has successfully recovered its second Falcon 9 in less than a week. Just four days after it launched, booster B1049 returned to sailed into Port Canaveral. The veteran booster is the first to launch and successfully land five times. On June 3, at 9:25 p.m. EDT (0125 GMT on June 4), B1049 took to the skies, delivering another batch of Starlink satellites into orbit.
Now, just three days after a flawless mission, the veteran rocket sailed triumphantly into port. Perched atop SpaceX’s newly remodeled drone ship, Just Read the Instructions (JRTI), B1049’s exterior was visibly more charred after its most recent trip through the atmosphere. This successful landing marks the first mission that JRTI was active in the Atlantic Ocean, as well as the third successful sea recovery in a row for SpaceX.
So far this year, SpaceX has successfully launched nine boosters this year. All but two of them have been recovered—two failed to land on the drone ship. One of those botched attempts was due to some residual cleaning agents trapped inside the engine. That booster, B1048, was SpaceX’s only other booster (so far) to fly five times.
But it surely won’t be the last. B1051 has already completed four successful missions and could see flight again soon. SpaceX has at least two other launches planned for June, including another Starlink launch and the launch of a GPS satellite for the Air Force. That flight will be on a new booster, B1060, per the Air Force’s request.
As it stands now, government payloads require SpaceX to use a new booster, versus a previously flown one. That was also the case for NASA’s commercial crew program. On May 30, astronauts Bob Behnken and Doug Hurley flew to the International Space Station atop a Falcon 9 rocket. The booster, which returned to Port just a few days ago, what a shiny new booster. However, in a recent development, NASA amended the agreement, saying that SpaceX could use previously flown boosters as well as reuse its Crew Dragon spacecraft.
Currently, SpaceX reuses its cargo version of Dragon, but each upgraded cargo (and Crew) variant can be reused as many as five times. Each booster is currently rated for ten flights, with minimal refurbishments in between.
Flying for the 5th time, the #SpaceX #Falcon9 launches from SLC-40 to bring another batch of #Starlink sats to orbit! The first stage was also recovered, marking the first time a booster has landed after 5 flights! pic.twitter.com/KcsNecEoI3
— Richard Angle (@RDAnglePhoto) June 4, 2020
SpaceX’s fleet of veteran rockets has dwindled a bit, with the loss of B1048 and B1056. Those losses came on the heels of two planned expenditures: B1046 and B1047. B1046was purposefully detonated as part of the company’s In-flight Abort test that occurred in January. That test was a lead up to the Demo-2 mission and proved that SpaceX’s launch escape system worked while B1047 carried the AMOS-17 satellite into orbit and was expended after depositing the satellite into space.
However, the California-based rocket builder should have some new Falcons rolling off the assembly line this summer, which will help support its ambitious Starlink launch manifest. This year, SpaceX has launched six Starlink missions, with at least one more planned for June, possibly two.
To date, SpaceX has launched a total of 482 Starlink satellites, but the company needs between 400-800 satellites on orbit to begin rolling out minimal coverage. To provide the coverage it wants, SpaceX is going to have to keep up the launch pace. And to do so, it will test the reusability factor of its rockets.
So far, we’ve seen two rockets fly five times, but when will B1049 fly a sixth time? How soon will we see a booster reach the 10-flight mark? What sort of refurbishments will it need then? With many more Starlink flights on deck, it will be interesting to see which boosters fly on which missions.
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
