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SpaceX begins assembling Starbase’s biggest manufacturing building yet
It might not look like much today but SpaceX has begun assembling what is set to become Starbase’s largest Starship manufacturing facility.
The structure, which has generally come to be known as Starbase’s ‘wide bay,’ was first teased by CEO Elon Musk in July 2021 and will be the fourth permanent assembly ‘bay’ constructed at Starbase – currently SpaceX’s sole dedicated Starship factory. The first, now known simply as the windbreak, is a triangular bay built in 2019 that is mostly unused but occasionally supports work on Starship nose assembly. Next, SpaceX built a larger ‘mid bay’ in the first quarter of 2020, out of which every Starship prototype and test tank since SN3 has been built.
A few months after the midbay was finished, SpaceX began constructing an even larger ‘high bay’ around 81 meters (265 ft) tall and 30 by 25 meters (100 by 80 ft) wide – about twice as tall and with twice the area, in other words. While the midbay was specifically optimized for assembling one or two Starship tank sections at a time, the high bay was designed to be large enough to fully assemble one Super Heavy booster (69m/225ft tall) and stack a Starship tank and nose section (50m/165ft tall) at the same time. The goal of SpaceX’s new ‘wide bay’ may be even loftier still.

Though SpaceX’s pace of Starship and Super Heavy assembly and processing appears to have slowed down significantly in the last few months, the company has still proven with Starships SN4-6, SN8-SN11, and SN15-16 that it can build large numbers of suborbital prototypes at the frankly incredible pace of 1-2 per month. With Super Heavy BN1, BN3, and BN3, SpaceX – to a lesser degree – has also demonstrated respectable booster prototype production, though none have flown and only one has completed any testing.
Nonetheless, as SpaceX works to complete Starship S21 and Super Heavy B5 and prepares to begin assembling S22 and B6 while Ship 20 and Booster 4 still sit – largely untested – at the launch site, Starbase’s existing production capabilities are already starting to outstretch its two main assembly bays. In other words, the purpose of SpaceX’s new ‘wide bay’ is almost certainly to double, triple, or even quadruple Starbase’s maximum vehicle production rate.
The wide bay’s dimensions have yet to be officially confirmed but based on aerial views of its foundation, it will measure roughly 50m (~165′) wide, 35m (~115′) deep, and 90-100m (~300-330′) tall, giving it more than twice as much usable floor space as the high bay. In theory, the high bay has enough space for SpaceX to stack 3-4 four Starship or Super Heavy tank sections at once. With more than twice the floor space, the wide bay should singlehandedly allow SpaceX to assemble 3-4 Super Heavy boosters, 4-8 Starships, or 2-3 boosters and 2-3 Starships at once.
At the absolute minimum, once fully outfitted, that means it could roughly triple the number of boosters or ships Starbase can fully assemble each month. Pictured below, there’s also a small but not insignificant amount of evidence (the small rectangles left of the wide bay foundation, bottom right, in the photo above) that SpaceX is completing additional foundation work that could double the wide bay’s floor space yet again. The second 50x35m structure those foundations seem to outline could be a wider midbay, a few-story ring assembly floor to augment Starbase’s tents, a 50x70m ‘high bay,’ or simply a more permanent space for general offices, workshops, storage, and other miscellaneous uses.
Stay tuned for updates on the massive structure’s construction.
Elon Musk
Elon Musk strikes down reports on SpaceX IPO rumors
Elon Musk has firmly denied recent media reports suggesting that SpaceX has reduced its target valuation for an upcoming initial public offering.
The denial came directly from the SpaceX and Tesla frontman on his social media platform X, where he responded with a single word, “False,” to a post from ZeroHedge that cited Bloomberg sources.
This swift rebuttal underscores Musk’s ongoing effort to manage speculation surrounding one of the most anticipated market debuts in recent history.
False
— Elon Musk (@elonmusk) May 29, 2026
According to the disputed reports, SpaceX had lowered its IPO valuation goal to at least $1.8 trillion from previous ambitions exceeding $2 trillion.
The claims emerged amid growing anticipation for the company’s confidential S-1 filing, which positions it for a potential public listing as early as June.
Some had pointed to strong revenue growth, particularly from the Starlink satellite internet service, which contributed heavily to the firm’s 2025 figures of $18.7 billion. Yet challenges persist in other areas, including substantial investments and losses tied to ambitious projects like Starship development and artificial intelligence initiatives, which plan to make life multiplanetary eventually.
Musk’s response highlights a pattern in which he actively counters what he views as inaccurate portrayals of his companies’ trajectories.
SpaceX, already valued privately at extraordinary levels, stands as a cornerstone of Musk’s empire alongside Tesla and xAI. The entrepreneur has long emphasized the transformative potential of reusable rockets and global broadband access, factors that fuel investor enthusiasm despite operational hurdles.
By rejecting the valuation downgrade narrative, Musk signals confidence in SpaceX’s fundamentals and its readiness for public markets on terms favorable to its long-term vision. People have been waiting a very long time to invest in SpaceX, and the valuation, as well as the introductory share price, is not going to need adjusting.
They’ll have plenty of suitors.
This episode reflects broader dynamics in the technology sector, where rumors often swirl around high-profile entities. Musk’s direct engagement with media narratives serves to maintain transparency and control the narrative around his ventures.
As SpaceX prepares for greater scrutiny in public markets, the founder’s denial reinforces optimism about its prospects. Supporters argue that the company’s innovative edge positions it for enduring success, far beyond short-term valuation debates. With the denial now public, attention turns to forthcoming regulatory filings that could provide clearer insights into SpaceX’s strategy and financial health.
The coming weeks promise to reveal more about how SpaceX will transition into a publicly traded powerhouse.
Elon Musk
Tesla’s Robotaxi dreams just took a massive step toward reality
Tesla’s dreams of operating a fully autonomous ride-hailing platform just took a massive step toward reality, as two separate events have indicated the company is perhaps closer than ever to achieving self-driving as a product.
On Thursday, Tesla was granted authorization by the State of Texas to operate driverless vehicles in a commercial manner. On May 28, Senate Bill 2807, passed by the 89th Texas Legislature, took effect after being passed back on September 1, 2025.
The bill establishes a statewide regulatory framework requiring authorization from the Texas Department of Motor Vehicles for companies to operate automated vehicles commercially on Texas roads.
This covers driverless, or SAE Level 4+, operations for passenger transport, meaning Robotaxi, or freight.
Tesla and other companies can self-certify their vehicles and tech as long as they:
- Operate in compliance with Texas traffic laws
- Maintain proper registration, title, and insurance
- Use compliant automated driving systems
- Record onboard activity and handle system failures and glitches safely.
The new authorization, which was first reported by James Stephenson on X, allows companies to utilize their own processes to determine if their vehicles are ready to operate without drivers.
🚨BREAKING:
Tesla has been authorized by the State of Texas to operate driverless vehicles commercially under the new law that took effect today, May 28th, 2026. Tesla has officially self-certified the software running on its robotaxis as Level 4. $TSLA pic.twitter.com/KSJdsvlaW5— James Stephenson (@ICannot_Enough) May 28, 2026
It is a rule that expedites the entire approval process, keeping agencies out of a usually long, lengthy, and frustrating task that is essential to technological advancements. It essentially means Tesla can launch commercial Robotaxi operations at this point.
On the very same day, Tesla continued the momentum as CEO Elon Musk shared a video of Cybercab units autonomously driving off the property at Gigafactory Texas. This is a major step in the story of the Cybercab.
Mass production of the Cybercab started at Giga Texas in April, and it is already heading out of the factory on its own.
Cybercab driving itself out of the GigaTexas factory pic.twitter.com/EwAMVVDjYy
— Elon Musk (@elonmusk) May 28, 2026
These two major events mark a drastic step forward in Tesla’s progress toward Cybercab and the permissions it needs to operate a self-driving ride-hailing service. Tesla is now able to operate autonomously under Texas law by self-certifying, and with the potentially imminent rollout of Cybercab, Tesla’s autonomous dreams are starting to take serious shape.
Elon Musk
The Tesla and SpaceX merger everyone is talking about is quietly building
Tesla and SpaceX may be closer to merging than Wall Street or either company is admitting.
Elon Musk has reportedly discussed merging Tesla and SpaceX with people close to him, according to CNBC, which cited sources familiar with the conversation. Tesla employees have long expected such a transaction and the topic is openly discussed internally, according to internal sources. With SpaceX is days away from kicking off its Wall Street roadshow for what could be the largest IPO in market history, this would be the first time the company will have public market currency to execute a stock-for-stock deal with Tesla.
The financial logic for a merger would make sense. A combined SpaceX and Tesla would create a conglomerate spanning rockets, satellites, electric vehicles, AI infrastructure, and energy storage valued at roughly $3.35 trillion to $3.6 trillion based on SpaceX’s IPO target range and Tesla’s current market capitalization. The two companies are already more intertwined than most people realize. SpaceX bought $697 million worth of Tesla Megapack systems for xAI data centers and $131 million worth of Cybertrucks. Tesla invested $2 billion in xAI, which subsequently merged with SpaceX. Past transactions also include Tesla selling solar equipment and parts to SpaceX, and SpaceX helping with Cybertruck materials.
Will Tesla join the fold? Predicting a triple merger with SpaceX and xAI
Musk himself signaled where this was heading in November 2025 when he posted on X, “My companies are, surprisingly in some ways, trending towards convergence.” Tesla and SpaceX announced a joint semiconductor fabrication facility in Austin called Terafab on the Gigafactory Texas campus, covering two advanced chip factories, with one serving Tesla’s AI needs for vehicles and Optimus robots, the other targeting space-based data centers under SpaceX’s infrastructure vision.
Wedbush analyst Dan Ives places the probability of a merger at 80% to 90% with a target completion in the first half of 2027. The mechanics of a deal became possible the moment SpaceX filed its S-1. Legal experts said a merger likely would not spark antitrust issues but would raise concerns among shareholders in each company, with questions around which company would be the parent, how a stock swap would take place, and who determines the appropriate price. Musk holds about 20% of Tesla’s equity but controls 85.1% of SpaceX’s voting power through a super-voting share class, meaning he would largely be negotiating the terms with himself.
Not everyone is convinced the timing is imminent. Traders on Kalshi place only 33% odds that a merger will happen before May 2027. The more immediate concern for Tesla shareholders is whether the SpaceX IPO pulls capital and Musk’s attention away from Tesla before any merger consolidates the upside for both.
What is clear is that the structural groundwork is already being laid. The Terafab announcement, the xAI merger, the shared supply chain, the cross-company balance sheet transactions, and now the IPO all point in the same direction. Whether the merger follows in 2027 or later, the two companies are already operating more like divisions of a single entity than independent competitors.