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SpaceX is turning oil rigs into floating Starship spaceports named after Mars’ moons
Update: Responsible for initially connecting Phobos and Deimos to SpaceX, NASASpaceflight has all the details in a new article published earlier today. Check out their coverage for more information and some excellent photos – from the ground and the air – of one of the newest additions to SpaceX’s seagoing fleet.
Six months after CEO Elon Musk revealed that “SpaceX is building floating, superheavy-class spaceports” for its next-generation Starship rocket, the company has already purchased and begun converting at least two retired oil rigs.
In a rapid-fire series of investigations spurred by recent photos and suspicions published by photographer Jack Beyer, it was quickly determined that an oil rig mothballed for years in Port of Brownsville and a twin ship in nearby Galveston were purchased by “an undisclosed buyer” for ~$7 million in July 2020. Weeks later, owner Valaris (formerly EnscoRowan) officially filed for bankruptcy, explaining the sale of multiple half-billion-dollar assets for scrap prices.
An offshore drilling contractor and owner of one the largest fleets of oil and gas drilling rigs in the world, ENSCO built seven 8500-series deep-water, semi-submersible oil rigs in the late 2000s and early 2010s. ENSCO 8506, the last in the series, was built for an incredible $560 million from 2008 to 2012. Thanks to the crashing oil and gas market, SpaceX is now the proud owner of 8500 and 8501 – the first two ships in the series – for a mere $7 million.
It was quickly determined by NASASpaceflight reporter Michael Baylor that shell company Lone Star Mineral Development purchased the rigs. In the tweet’s replies, another user discovered that the LLC was directly connected to SpaceX CFO Bret Johnsen, indisputably confirming that SpaceX was the new owner of both oil rigs.
In its first act as owner, SpaceX fittingly renamed the rigs Deimos (8500) and Phobos (8501). While subverting the SpaceX norm of naming rocket landing platforms after starships from science fiction author Iain Banks’ Culture universe, the moons of Mars are a more than fitting alternative given the company’s intense focus on building a sustainable city on the planet.
The purpose of the newest additions to SpaceX’s fleet is both simple and unclear. While the company is currently hard at work building out a land-based launch complex for orbital Starship-Super Heavy launches, vast floating launch and landing platforms have also featured in SpaceX’s official artist concepts of the rocket for the last several years. At first centered on enabling suborbital airline-style Starship flights to and from coastal cities, where sea-based platforms would be a necessity to avoid domestic regulations and extreme noise pollution, Musk ultimately positioned sea-launch as a viable alternative or complement to any and all land-based Starship launch operations.
Most recently, in June 2020, the CEO stated that SpaceX “is building floating, superheavy-class spaceports for Mars, Moon, & hypersonic travel around Earth.” Now, with work already clearly underway to convert at least two oil rigs into Starship launch and landing platforms, that concept is far closer to reality. It remains to be seen how extensive (and thus expensive) the changes SpaceX needs to make to the platforms will be but it’s safe to say that the venture is a whole lot more plausible when a dying industry’s asset depreciation is so intense that a billion dollars worth of oil rig hardware can be bought for a mere $7 million just a decade after completion.
News
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years.
The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.
Dry cathode 4680 cells
In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.
The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”
Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.
4680 packs for Model Y
Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla:
“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”
The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.
Elon Musk
Tesla Giga Texas to feature massive Optimus V4 production line
This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.
Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.
Optimus 4 production
In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas.
This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4.
“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated.
How big Optimus could become
During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world.
“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP.
“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated.
Elon Musk
Rumored SpaceX-xAI merger gets apparent confirmation from Elon Musk
The comment follows reports that the rocket maker is weighing a transaction that could further consolidate Musk’s space and AI ventures.
Elon Musk appeared to confirm reports that SpaceX is exploring a potential merger with artificial intelligence startup xAI by responding positively to a post about the reported transaction on X.
Musk’s comment follows reports that the rocket maker is weighing a transaction that could further consolidate his space and AI ventures.
SpaceX xAI merger
As per a recent Reuters report, SpaceX has held discussions about merging with xAI, with the proposed structure potentially involving an exchange of xAI shares for SpaceX stock. The value, structure, and timing of any deal have not been finalized, and no agreement has been signed.
Musk appeared to acknowledge the report in a brief reply on X, responding “Yeah” to a post that described SpaceX as a future “Dyson Swarm company.” The comment references a Dyson Swarm, a sci-fi megastructure concept that consists of a massive network of satellites or structures that orbit a celestial body to harness its energy.
Reuters noted that two entities were formed in Nevada on January 21 to facilitate a potential transaction for the possible SpaceX-xAI merger. The discussions remain ongoing, and a transaction is not yet guaranteed, however.
AI and space infrastructure
A potential merger with xAI would align with Musk’s stated strategy of integrating artificial intelligence development with space-based systems. Musk has previously said that space-based infrastructure could support large-scale computing by leveraging continuous solar energy, an approach he has framed as economically scalable over time.
xAI already has operational ties to Musk’s other companies. The startup develops Grok, a large language model that holds a U.S. Department of Defense contract valued at up to $200 million. AI also plays a central role in SpaceX’s Starlink and Starshield satellite programs, which rely on automation and machine learning for network management and national security applications.
Musk has previously consolidated his businesses through share-based transactions, including Tesla’s acquisition of SolarCity in 2016 and xAI’s acquisition of X last year. Bloomberg has also claimed that Musk is considering a merger between SpaceX and Tesla in the future.
Tesla confirms that it finally solved its 4680 battery’s dry cathode process
Tesla Giga Texas to feature massive Optimus V4 production line
