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NASA & US Air Force consider SpaceX’s reusable rockets for future missions
Three of SpaceX’s largest and most important customers have in some way expressed significant interest in flying missions aboard recovered SpaceX Falcon 9 rockets. Even with respect to the three commercial reuses SpaceX has already accomplished this year, the combined interest of NASA, the US Air Force, and Iridium could well mark a major phase change in the space industry.
NASA
According to NASASpaceflight.com, NASA has been exploring reused Falcon 9 hardware for CRS-13, a cargo Dragon mission scheduled for no earlier than December 4th. If NASA finalizes approvals in time, CRS-13 could see SpaceX reuse both the Falcon 9 first stage and the Dragon spacecraft atop it, in many ways reminiscent of SpaceX’s ultimate goal of full reusability. Furthermore, for CRS-13, NASA is focused on launching aboard the same Falcon 9 that flew CRS-11 just four months ago, a pleasant synergy that would figuratively suggest the development of a fleet ownership-type attitude. NASA is by far SpaceX’s largest customer and has been an invaluable source of support and expertise for the company for nearly all of its 15 years of operations.
Falcon 9 1031 prepped and ready for its second flight and SpaceX’s third commercial reuse. (Tom Cross/Teslarati)
US Air Force
The week initially began with a Bloomberg interview of US Space Command head General Jay Ramond that can be best described as a resounding affirmation of the Air Force’s interest in reused SpaceX rockets. Never one for subtlety, Gen. Raymond was quoted saying that the USAF would be “absolutely foolish” and “dumb” to not consider flying on reused rockets. While reused hardware will need to be certified separately for Air Force missions, the Raymond suggested that the process of certifying the reusable Falcon 9 had already begun, although he was unable to provide a an estimate for when it might be completed. Ultimately, although the Air Force is laser-focused on reliability over all other traits, Raymond praised SpaceX for its role in introducing price-shrinking competition to the launch market and reiterated his “[complete] commitment to…reused rocket[s].”
Iridium Communications
Up next on the docket is Iridium, a satellite communications provider that contracted with SpaceX for the eight missions required to launch its next generation Iridium NEXT constellation. While CEO Matt Desch has openly expressed interest in reuse over the last year and a half, he remained skeptical and maintained that he was effectively waiting for a more amicable discount on reused vehicles before biting the bullet. SpaceX must have made an offer that couldn’t be refused, as Iridium Communications announced in a press release that the NEXT-4 and NEXT-5 missions will both fly atop reused Falcon 9 first stages, beginning with NEXT-4 on December 22nd.
Of crucial importance, Iridium also noted that the premiums paid to their launch insurers would not increase as a result of the adoption of reused hardware. While the change boosters means that the newly-completed Landing Zone at Vandenberg will have to wait until 2018 to host a Falcon 9 recovery, that is a small consolation to pay for yet another major customer warming up to SpaceX’s reusability program.
Falcon 9 1041 the night before its predawn liftoff for the Iridium NEXT-3 mission. (SpaceX)
Encore: Spacecom
Finally, in an unexpected and encouraging turn of events, Israeli communications satellite operator Spacecom announced on Wednesday that they had contracted with SpaceX for the 2019 and 2020 launches of the Amos-17 and Amos-8 communications satellites.
In early-September 2016, a Falcon 9 preparing to conduct a static fire suffered a catastrophic failure that destroyed vehicle, Spacecom’s Amos-6 payload, and extensively damaged Launch Complex 40. With SpaceX effectively at fault for the loss, they were contractually obligated to either return Spacecom’s $50m deposit or provide a second launch at no additional cost. Spacecom sided with the latter and further tripled down on SpaceX with a second launch order in 2020 and the decision to fly Amos-17 on a reused Falcon 9.
While one could dismiss the choice to exploit free reflight as a move begrudgingly forced by financial pragmatism, Spacecom’s Amos-8 launch order and decision to fly on reused hardware is undeniable evidence that the two companies have preserved their relationship in spite of the Amos-6 trials and tribulations.
Whoa. Spacecom not only going back to #SpaceX F9 for free re-flight of AMOS-6, but it looks like it will be on a flight-proven F9 to boot!
— Chris G (@ChrisG_SpX) October 18, 2017
All said and done, the fact that all four of these groundbreaking announcements occurred over the course of a handful of days is incredible. If the trope could ever be said to be applicable, it is hard to deny that SpaceX is likely on aerospace’s Cloud 9 this week.
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
