SpaceX
SpaceX job posts hint at building satellite constellations for US military
Published within the last week, unusual SpaceX job postings have begun to combine a range of topics unusual for the company, indicating some level of internal interest in entering into an entirely new industry and mode of operations.
Judging from the job descriptions, SpaceX is looking to hire engineers familiar with integrating third-party payloads onto in-house satellite buses, and they are primarily interested in engineers with Top Secret security clearances.
https://twitter.com/collinkrum/status/1002425606401736704
Given the subtlety of the relevant job postings and the apparent need for high-level security clearances to become involved, it’s extremely difficult to figure out what exactly SpaceX’s goals are. Still, they contain just enough detail to point in the direction of several obvious explanations. These revolve around one industry in particular: satellite operations and sales to or for third parties.
To some extent, these job listings are to be expected: SpaceX has extensive experience building spacecraft (Falcon 9 upper stages and Dragon) explicitly intended for internal use and operations only. Instead, what is surprising about these job listings is the presence of repeated references to “customer payload[s]” in the context of “satellite mission design”, “SpaceX-developed satellite constellations and payload missions”, the “simulation of remote sensing payloads and constellations”, and a need for “on-orbit commissioning” or “activation”.
Put simply, there is no obvious explanation for why SpaceX would need any of those things, at least in the context of the company’s publicly-known activities and business interests. Taken individually, they might be explained by – as described in the same listings – “[SpaceX’s expanding] classified mission manifest”, as it’s well-known that SpaceX is in the process of certifying Falcon 9 and Falcon Heavy to launch all practicable Air Force (USAF) and National Reconnaissance Office (NRO) payloads. Those payloads often need to be placed in high-energy orbits that rely on extended upper stage coasts between orbit-raising maneuvers, essentially requiring modifications to Falcon 9’s upper stage such that it becomes a sort of ad-hoc, short-lived satellite.
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- SpaceX’s first Falcon Heavy launch also happened to be a strategic and successful test of Falcon upper stage coast capabilities. (SpaceX)
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- SpaceX’s first two Starlink prototype satellites are pictured here before their inaugural launch, showing off a thoroughly utilitarian bus and several advanced components. (SpaceX)
Starlink spinoffs
However, in all (conceivable) cases where SpaceX might launch a highly-classified payload for a government customer, the dynamic is still precisely that – launch provider (SpaceX) and customer (NRO/USAF/etc). Just like FedEx or UPS have no ownership of or relationship with the goods they transport, satellite launch providers are simply delivering a (very expensive, fragile, and irreplaceable) payload from Point A (the ground) to Point B (orbit). When UPS ships a new smartphone from the manufacturer to the customer, they most certainly do not perform an “in-house commissioning” – if the customer needs help setting up their new phone, they go to the manufacturer or service provider (cell carrier).
In the same way, satellite commissioning is a generally necessary process where the satellite manufacturer – rarely the actual operator or service provider – raises or fine-tunes the expensive spacecraft’s orbit and verifies that all systems and payloads are functioning as intended – only after that process is complete does the manufacturer finally ‘hand off’ the satellite to the customer that paid for it. In some cases, the manufacturer continues to maintain or at least monitor the satellite in the background as the owner serves its own customers, much like how military airplane manufacturers are typically contracted to maintain or support those planes even after final delivery.
Judging from the need for top-secret security clearance in nearly all of these new job postings, SpaceX clearly has a very particular sort of customer in mind. Be it DARPA, NRO, the USAF, or some totally unknown government actor, one or several of the above entities have expressed explicit interest in coopting SpaceX’s newfound status as a prospective dirt-cheap-satellite manufacturer. If that were not the case, SpaceX would not be keen to publish 5+ engineering job postings with top-secret clearance as an explicit prerequisite.
Project Blackjack
Ultimately, it’s undeniable that the prospect of a completed vertically-integrated launch and satellite service provider could be so alluring that entities like the NRO, USAF, or DARPA simply could not pass up the opportunity to at least give it a try. From a purely speculative perspective, the services and processes SpaceX seems to be in the middle of developing are an almost perfect fit with DARPA’s (Defense Advanced Research Projects Agency) brand new Blackjack program. Perfectly summarized in September by Space News reporter Sandra Erwin,
“[DARPA] wants to buy small satellites from commercial vendors, equip them with military sensor payloads and deploy a small constellation in low-Earth orbit to see how they perform in real military operations.”
DARPA awarded a $1.5M contract to smallsat manufacturer and operator Blue Canyon on in October 2018, small relative to the program’s roughly $118M budget. DARPA has made clear that it plans to finalize multiple contracts with different prospective satellite designers and operators in order to ensure a competitive environment, fuel growth in a fairly new industry, and pave the way for the final procurement of an experimental constellation of 20 satellites by 2021. If successful, it could completely change the way the entire US government procures national security-related satellites, offering a far faster, cheaper, and more flexible route to set up unique capabilities.
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Elon Musk
Elon Musk’s TERAFAB project: Everything you need to know
The CEO has hinted heavily for several quarters that it would probably need to produce its own computing power to stay up to speed on the demand it is facing for its projects. It is now taking matters into its own hands.
On Sunday, Elon Musk formally made TERAFAB official—a groundbreaking $20-25 billion joint venture uniting Tesla, SpaceX, and xAI, three of the world’s richest man’s most significant and powerful ventures.
Musk described the project as “the most epic chip building exercise in history by far.”
Elon Musk launches TERAFAB: The $25B Tesla-SpaceXAI chip factory that will rewire the AI industry
The initiative aims to produce over one terawatt of AI compute annually, dwarfing the global industry’s current output of roughly 20 gigawatts per year. Musk framed the effort as “the next step towards becoming a galactic civilization,” positioning it as essential for scaling humanity into a multi-planetary species.
The Need for TERAFAB
Existing chip suppliers such as TSMC, Samsung, and Micron cannot expand quickly enough to meet the explosive demand for AI hardware.
We’re building TERAFAB to close the gap between today’s chip production & the future’s demand – a future among the stars.
Join us → https://t.co/512DIlqNgY pic.twitter.com/ATr0e0pRDJ
— SpaceX (@SpaceX) March 22, 2026
Musk explained the situation clearly:
“We’re very grateful to our existing supply chain… but there’s a maximum rate at which they’re comfortable expanding. We either build the Terafab or we don’t have the chips, and we need the chips, so we build the Terafab.”
The CEO has hinted heavily for several quarters that it would probably need to produce its own computing power to stay up to speed on the demand it is facing for its projects. It is now taking matters into its own hands.
Chip Types and Production Goals
The facility will manufacture two specialized chip families, according to the presentation:
- Edge-inference AI5 and AI6 processors optimized for Tesla’s Optimus humanoid robots and Full Self-Driving systems in vehicles and Robotaxis
- High-power D3 chips hardened for space environments
Musk outlined annual output targets, which are between 100 and 200 gigawatts of terrestrial compute for robotics, supporting Musk’s vision of producing 1-10 billion Optimus units per year, and the majority (80%) of chips dedicated to orbital AI data centers. Overall, TERAFAB aims to produce 100-200 billion custom AI and memory chips each year.
Scale and Strategy
The size of the TERAFAB project will be remarkable, as Musk indicated after the presentation that the entire Gigafactory Texas campus would not be large enough to fit the needs of the project. In fact, Musk said it would be around 100 million square feet in size, the equivalent of 15 Pentagons or three Central Parks.
Yes, the one in New York City.
Construction will begin with an “advanced technology fab” on the Giga Texas campus in Austin, enabling rapid iteration: design a chip, fabricate lithography masks, produce and test wafers, all within days.
However, the full-scale TERAFAB requires thousands of acres and over 10 gigawatts of power, far exceeding what Giga Texas can accommodate. Musk stated:
“We couldn’t possibly fit the Terafab on the GigaTexas campus. It will be far bigger than everything else combined there.”
Multiple large sites are currently under consideration, but this will need a sprawling land mass to get started.
The sheer scale of TERAFAB is going to be insane.
Elon said it wouldn’t be suitable for anywhere on Giga Texas property because it’s too big:
“We couldn’t possibly fit the Terafab on the GigaTexas campus. It will be far bigger than everything else combined there.
Several… pic.twitter.com/79GbhNNuf4
— TESLARATI (@Teslarati) March 23, 2026
Key Applications
TERAFAB will be a crucial part of the development of some of Tesla’s most valuable projects, including Optimus and data center development, especially from an orbital standpoint. For that reason, we will break this down into Terrestrial and Orbital applications:
- Terrestrial: Powers autonomous vehicle fleets and billions of Optimus robots performing physical labor
- Orbital: Starship will launch massive AI satellite constellations, starting with 100-kilowatt “Mini” units, and scaling to larger Megawatt models, creating the world’s largest data center in low-Earth orbit.
Space-based advantages include five times greater solar irradiance, efficient vacuum heat rejection, and freedom from terrestrial grid constraints (U.S. electricity generation totals just 0.5 terawatts). Musk emphasized the principle:
“Quantity has a quality all its own.”
We wrote about SpaceX’s recent filing with the FCC for 1 million orbital data center plans.
Strategic Vision
TERAFAB represents vertical integration at an unprecedented scale, combining AI hardware, robotics, and orbital infrastructure.
Musk described the project as “the final missing piece of the puzzle.” With production ramping toward 2027, TERAFAB is set to accelerate an era of abundance, transforming science fiction into reality and positioning Musk’s companies at the forefront of galactic-scale innovation.
Elon Musk
Elon Musk launches TERAFAB: The $25B Tesla-SpaceXAI chip factory that will rewire the AI industry
Tesla, SpaceX, and xAI unveiled TERAFAB, a $25B chip factory targeting one terawatt of AI compute annually.
Elon Musk took the stage over the weekend at the defunct Seaholm Power Plant in Austin, Texas, to officially unveil TERAFAB, a $20-25 billion joint venture between Tesla, SpaceX, and xAI that he described as “the most epic chip building exercise in history by far.” The announcement marks the most ambitious infrastructure bet Musk has made since Gigafactory 1 in Sparks, Nevada, and it fuses three of his companies into a single, vertically integrated AI hardware machine for the first time.
TERAFAB is designed to consolidate every stage of semiconductor production under one roof, including chip design, lithography, fabrication, memory production, advanced packaging, and testing. At full capacity, the facility would scale to roughly 70% of the global output from the current world’s largest semiconductor foundry from Taiwan Semiconductor Manufacturing Company (TSMC).
Elon Musk’s stated goal is one terawatt of computing power annually, split between Tesla’s AI5 inference chips for vehicles and Optimus robots, and D3 chips built specifically for SpaceXAI’s orbital satellite constellation.
Tesla Terafab set for launch: Inside the $20B AI chip factory that will reshape the auto industry
The logic behind the merger of these three entities is rooted in a supply chain crisis Musk has been signaling for over a year. At Tesla’s Q4 2025 earnings call, he warned investors that external chip capacity from TSMC, Samsung, and Micron would hit a ceiling within three to four years. “We’re very grateful to our existing supply chain, to Samsung, TSMC, Micron and others,” Musk acknowledged at the Terafab event, “but there’s a maximum rate at which they’re comfortable expanding.” Building in-house was, in his framing, not a strategic option, but a necessity.
The space angle is where the announcement becomes genuinely unprecedented. Musk said 80% of Terafab’s compute output would be directed toward space-based orbital AI satellites, arguing that solar irradiance in space is roughly 5x greater than at Earth’s surface, and that heat rejection in vacuum makes thermal scaling viable. This directly feeds the SpaceXAI vision, which is betting that within two to three years, running AI workloads in orbit will be cheaper than doing so on the ground. The satellites, powered by constant solar energy, would effectively turn low Earth orbit into the world’s largest data center.
Will Tesla join the fold? Predicting a triple merger with SpaceX and xAI
Historically, this announcement threads together every major Musk initiative of the past two years: the xAI-SpaceX merger, Tesla’s $2.9 billion solar equipment talks with Chinese suppliers, the 100 GW domestic solar manufacturing push, the Optimus humanoid robot program, and Starship’s development. TERAFAB is the capstone that ties them into a single coherent architecture — chips made on Earth, launched by SpaceX, powered by Tesla solar, run by xAI, and ultimately extended to the Moon.
“I want us to live long enough to see the mass driver on the moon, because that’s going to be incredibly epic,”Musk said during the presentation.
Announcing TERAFAB: the next step towards becoming a galactic civilization https://t.co/IDKey07mJa
— Tesla (@Tesla) March 22, 2026
Elon Musk
SpaceX is quietly becoming the U.S. Military’s only reliable rocket
Space Force drops ULA for SpaceX on GPS launch after Vulcan rocket anomaly investigation halts flights.
The U.S. Space Force announced today it is switching an upcoming GPS III satellite launch from United Launch Alliance’s Vulcan rocket to a SpaceX Falcon 9, a move that is as much a reflection of Vulcan’s mounting problems as it is a validation of SpaceX’s growing dominance in national security space launch. The GPS III Space Vehicle 09, originally contracted to fly on Vulcan this month, will now target a late April liftoff on Falcon 9, marking the fourth consecutive GPS III satellite the Space Force has moved to SpaceX after contracts were originally awarded to ULA.
The immediate trigger is a solid rocket motor anomaly that occurred on February 12 during Vulcan’s USSF-87 mission. Although the payloads reached orbit and ULA declared the mission successful, the company characterized the malfunction as a “significant performance anomaly” and has since paused all military launches on Vulcan pending a root cause investigation.
“With this change, we are answering the call for rapid delivery of advanced GPS capability while the Vulcan anomaly investigation continues,” said Systems Delta 81 Commander Col. Ryan Hiserote. “We are once again demonstrating our team’s flexibility and are fully committed to leverage all options available for responsive and reliable launch for the Nation.”
The broader reality is that SpaceX’s reliability record and launch cadence have made it the path of least resistance for the Pentagon, and bodes well with Elon Musk’s plans to IPO SpaceX sometime this year. Its Falcon 9 is the most flight-proven rocket in history, and the Space Force’s Rapid Response Trailblazer program was specifically designed to enable exactly this kind of provider swap for GPS missions, and effectively building SpaceX’s flexibility into the national security launch architecture by design.
For ULA, the stakes are existential. The company entered 2026 with aspirations of finally turning a corner after years of Vulcan delays, with interim CEO John Elbon pointing to a backlog of over 80 missions as reason for optimism. Meanwhile, SpaceX’s contracts with the Space Force have given it a formal pathway to take on even more national security launches going forward.
The significance of today’s announcement extends beyond one satellite swap. It reinforces that America’s most critical space infrastructure, including GPS, missile warning, and beyond, is increasingly dependent on a single commercial provider.
Elon Musk’s TERAFAB project: Everything you need to know
Elon Musk offers to pay TSA salaries as government shutdown leaves agents without paychecks
