News
SpaceX CEO Elon Musk teases steel Starship on the Moon and Mars
SpaceX CEO Elon Musk has published the first official renders of the company’s updated stainless steel Starship, offering glimpses of the spacecraft on both the Moon and Mars.
Although the designs of Starship and Super Heavy (formerly BFS and BFR) have shifted significantly over the past three years, the vehicle’s primary destinations have remained stable. Above all else, SpaceX remains focused on designing its next-gen rocket to be the best spacecraft ever built for transporting huge payloads and humans to the Moon, Mars, and ultimately throughout the solar system. The interplanetary future of Starship is currently an unknown quantity but SpaceX is already building the first full-scale orbital prototype and testing multiple finished versions of the Raptor engine that will power it.
As discussed earlier today, SpaceX has already completed a low-fidelity prototype of Starship known as Starhopper, designed to – per its namesake – perform low-altitude, low-velocity hop tests. Powered by Raptor, Starhopper also acts as a mobile test stand for the next-gen rocket engine meant to power both Starship and its Super Heavy booster. SpaceX’s current planning has delayed a vacuum variant of the engine for several years, instead choosing to standardize the same Raptor engine across both stages of BFR. Starship will feature seven Raptor engines producing ~14,000 kN (~3.2M lbf) of thrust, while Super Heavy’s latest iteration would require a 31 Raptors and produce a staggering 62,000 kN/14M lbf of thrust at liftoff.
That performance – theoretically making Starship/Super Heavy almost two times as powerful as Saturn V – is essential to support massive missions to Mars and the Moon while also enabling complete reusability of the rocket. SpaceX rightly judged that rapid, low-effort reusability is the only way to truly revolutionize the cost of access to orbit, at least for the indefinite future. This need itself piggybacks on CEO Elon Musk’s founding motivation: to make humanity a multi-planetary species and protect it against future mass-extinction events.
Musk has long viewed the Moon as a distraction to that goal, offering very little prospect of being more than a detour, but both NASA and the political apparatus currently controlling the US have decided that a rebranded Moon return is desirable. Repeating several nearly identical Moon return proposals from the last few decades, the political powers that be have yet to actually put any money where their mouths are. SpaceX and Musk have nonetheless jumped on the bandwagon, a pragmatic decision to hedge bets in case funding actually appears. Unsurprisingly, SpaceX is interested in any opportunity to acquire federal funding for its expensive Starship/Super Heavy/Raptor development programs.
In September 2018, SpaceX announced plans to send Japanese billionaire Yusaku Maezawa and 8-10 artists of his choice on the first Starship mission around the Moon. According to Musk, that could happen as early as 2023 but will necessarily be preceded by at least one uncrewed demonstration of Starship’s performance in deep space. Given the nominal reusability of Starship, the same spacecraft might perform both missions.
In the meantime, SpaceX is in the process of building the first orbital Starship prototype, although it’s unclear just how advanced the vehicle will be. Depending on how polished and successful SpaceX’s Starship Alpha (for lack of a better term) is, it’s conceivable that the spacecraft could be retrofitted or upgraded for actual demonstration missions to deep space or the Moon. To enable the long-term reusability of Starships, SpaceX will need to rely on in-orbit refueling by way of dedicated tanker launches. However, a lower-fidelity prototype that might otherwise be scrapped could be a prime candidate for a one-way Moon-impact or lunar-landing mission, reducing risk for future crewed or uncrewed Starship missions to the Moon before SpaceX has the facilities and hardware to support simultaneous Starship and tanker launches.
Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.
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
