News
SpaceX’s Mr. Steven crosses Panama Canal on 5000 mile journey to Florida
Iconic SpaceX vessel Mr. Steven has completed a successful transit of the Panama Canal as of February 7th, leaving the fairing recovery ship approximately 3-4 days from arrival at its new home in Port Canaveral, Florida.
Mr. Steven’s move from the West Coast to the East Coast comes shortly after a series of controlled fairing recovery tests – dropped by helicopter before deploying a parafoil – brought the vessel closer than ever before to successfully snagging a Falcon fairing out of the air. Thanks to webcams at the landmark, Mr. Steven’s trip through the Panama Canal also revealed that his arms were uninstalled for the coast swap, while two fairing halves – covered in tarps – stood out on the ship’s large deck.
Aaaaand the grand finale, a gif of Mr. Steven’s transit through the Panama Canal’s first western lock (Miraflores). Probably the last we’ll see of him until Port Canaveral, with an ETA around ~4 days from now 🙂#SpaceX pic.twitter.com/DIus6K5hK5
— Eric Ralph (@13ericralph31) February 7, 2019
Although the presence of two fairing halves could be a sign of something else, it could indicate that SpaceX has plans to continue its controlled fairing drop/recovery tests, albeit this time in the Atlantic Ocean. Thanks to a sharp-eyed local observer, it can be observed that, while topped with tarps and safely secured, the fairing halves aboard Mr. Steven had no additional protection against sea spray and the elements over the course of a 5000+ mile (~8000 km) journey at a cruising speed of roughly 20 mph (~32 km/h). In other words, they are most certainly not going to be reused.
If not for reuse, then the only reason Mr. Steven would need to bring fairings to Florida is if there is some need for fairing recovery development hardware (halves that can be abused without opportunity cost), either for more basic mechanical and interface tests with fairings and nets or to continue SpaceX’s program of experimental drop testing.
Is your #MrSteven here in Panama @elonmusk and @SpaceX ? pic.twitter.com/GvTNGYQU9K
— Hugo Tello (@soyhugotello) February 6, 2019
Intriguingly, although SpaceX released a second video of “one” of Mr. Steven’s final West Coast catch tests, some basic sleuthing can easily determine that the test shown in the January 29th video probably occurred more than two weeks earlier, on January 10th. This means that one final helicopter drop test was performed (January 26th) before SpaceX departed Port of LA for Florida on the 29th. Some might conclude, then, that SpaceX’s latest drop tweet was more than a little coy, perhaps indicating that the results of the Jan 26 test may have been appreciably different than the extreme near-miss experienced on the 10th.
While the company’s history – combined with CEO Elon Musk’s welcome tendency of sharing good news almost as soon as he hears it – suggests that the Jan 26 test was probably not a success, SpaceX could be playing its development cards close to its chest when it comes to fairing recovery.
One of Mr. Steven’s final West Coast fairing recovery tests before shipping out for the East Coast. Wait for it… pic.twitter.com/A7q37Gpllu
— SpaceX (@SpaceX) January 30, 2019
Regardless, SpaceX clearly has no plans to end its experimental fairing recovery program with success so agonizingly within reach. Mr. Steven’s move to Florida sets the vessel up for a dramatic increase in available post-launch fairing recovery attempts at the same time as Falcon fairings likely still cost around $3 million apiece and continue to pose the same conundrum Musk raised in mid-2017.
“Imagine if we had a $6 million pallet of cash falling through the sky. Would we try to catch it? I think the answer is yes.” – Elon Musk, July 2017
Although the cost of SpaceX’s fairing recovery program is probably several tens of millions of dollars at this point, it seems probable that Musk would still stand behind his thought experiment. Assuming SpaceX can cost-effectively reuse fairings once recovery is assured, a development program costing upwards of $50-100M could be entirely recouped after just 10-20 dual fairing recoveries, compared to the 21 fairings SpaceX flew in 2018 alone. As long as Falcon 9 and Heavy are likely to continue operating for several more years (all but guaranteed), fairing recovery should still prove worthwhile if SpaceX can close the recovery gap within the next 6-12 months.
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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:Â
“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.Â
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.Â
“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.Â
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.Â
“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.Â
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
