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SpaceX job posts confirm Starship’s Super Heavy booster will be built in Texas

A rough visualization of the size of Starhopper, Starship, and Super Heavy and SpaceX's Boca Chica build facilities. (Austin Barnard, Teslarati)

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A duo of SpaceX job postings at the company’s South Texas facilities have confirmed that both Starship and Super Heavy “flight article” vehicles will initially be fabricated and assembled on-site in Boca Chica, also implying that the rocket’s first orbital launch attempts will occur in the same vicinity.

Construction of the first massive Super Heavy booster could begin in Boca Chica within the next several months, presumably progressing in a similar fashion to Starship’s full-scale hopper prototype. According to CEO Elon Musk, Starhopper hop tests and Super Heavy construction could begin – respectively – as early as March and April 2019, perhaps just one or two months from now.

An overview of BFR’s booster and spaceship, now known as Super Heavy and Starship. (SpaceX)

Where to build a giant rocket?

“Tank fabricators will work to build the primary airframe of the Starship and Super Heavy vehicles at the SpaceX South Texas build site. [They] will work with an elite team of other fabricators and technicians to rapidly build the tank (cylindrical structure), tank bulkheads, and other large associated structures for the flight article design of both vehicles.”SpaceX, 02/15/19

Posted on February 15th, both open positions centered around structural assembly (i.e. welding) critical for the construction of the massive propellant tank domes, barrel sections, and other major structure of Starship and Super Heavy. Following an unanticipated pivot to stainless steel – rather than advanced carbon composites – as the primary structural material of choice for BFR, the project has been continually marked by a flurry of impressive technical progress at the same time as many previously foundational aspects became uncertain.

Most notably, SpaceX appeared to terminate a lease agreement it had held with the Port of Los Angeles for a large berth meant to be developed into a dedicated factory for BFR’s massive spaceship upper stage and booster, whose 9m (~30 foot) diameter would have been highly impractical to build somewhere that wasn’t either at the rocket’s launch site or directly adjacent to a port. With its headquarters in Hawthorne, CA (southwestern Los Angeles), SpaceX’s first choice was unsurprisingly the Port of LA, a location that would have allowed its 5000+ local employees to have seamlessly transferred to the BFR program without requiring highly disruptive relocations.

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Known as Berth 240, SpaceX’s lease began in March 2018 but was reportedly terminated in January 2019, likely meaning that the company will have to vacate the premises next month. While an official SpaceX statement and subsequent Elon Musk tweets relating to that report served to partially correct the record and confirm that “Starship prototypes” would be built locally in South Texas, Super Heavy was never mentioned. SpaceX’s latest job postings complete the image, indicating that all aspects of the first Starship and Super Heavy prototypes will be assembled in South Texas.

Weighing just shy of 4.5 million kilograms (~10M lbs) fully-fueled and standing around 118m (387 ft) tall with both stages stacked together, BFR is a beast of a launch vehicle and will require wholly new methods of production and assembly thanks to its sheer scale and the extensive integration of stainless steel alloys into its design. Compared to SpaceX’s Falcon 9 rocket, which is by no means small, Super Heavy on its own could end up being 68m (224 ft) tall, just slightly shorter than a complete Falcon 9 with a booster, upper stage, and fairing (71m, 233 ft). Standing on its tripod fins, Starship stands around 55m (180 ft) tall, although all of these figures are liable to change, as they come from a September 2018 SpaceX presentation that occurred before Musk publicized the move to stainless steel.

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Likely to remain unchanged is the diameter of Starship and Super Heavy: 9m (30 ft), roughly 2.5 times wider than Falcon 9’s booster and upper stage. Even more true for a 9m-diameter rocket also meant to rely on a partial implementation of stainless steel balloon tanks, transporting Starship and Super Heavy more than a few thousand feet horizontally is going to be an extraordinary challenge, although SpaceX’s Boca Chica facilities are conveniently located just a mile or less from the Gulf of Mexico. While road transport is entirely out of the question, Saturn V’s massive first and second stage boosters proved to be relatively easy to transport thanks to the production facility being directly adjacent to a large body of water (or a river to get there, in their case).

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“For all their prodigious bulk, [Saturn V’s 33.0 ft (10.1 m) diameter first and second stages] could be transported with comparative ease via seagoing barges [from Michoud, Louisiana to Cape Canaveral, Florida].”Roger Bilstein/NASA, p. 301

Assuming SpaceX chooses to assemble Super Heavy with the same vertical, outdoors approach, Boca Chica, Texas is going to be greeted by a view even more exotic than the already-impressive progress being made with Starship’s Starhopper prototype. CEO Elon Musk noted that he believed the first Super Heavy prototype would begin to be built this spring (as early as April). In the meantime, SpaceX continues to exploit the benefits of stainless steel whenever it can, utilizing the company’s wealth of Hawthorne, CA expertise and infrastructure to fabricate subassemblies that can easily be shipped by road or plane to South Texas. After arrival, Boca Chica-based employees or contractors can be tasked with the considerably less infrastructure-intensive work of final assembly and integration, a challenging and critical process but one that is at least slightly more setting-agnostic.

 

SpaceX’s propulsion team continues to test the first full-scale Raptor engine a few hundred miles north of Boca Chica while Starhopper is gradually outfitted with a range of avionics, wiring, and plumbing needed for the vehicle’s hop test debut. That could come as early as March, according to Musk, although further delays should come as no surprise.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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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.

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Credit: SpaceX

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.

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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.

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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:

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  • 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:

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“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.

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:

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  • 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.

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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.

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Tesla TERAFAB Factory in Austin, Texas

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

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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.

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“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.

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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.

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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.

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SpaceX IPO is coming, CEO Elon Musk confirms

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.

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