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SpaceX CEO Elon Musk’s Starship presentation will have to wait a few more weeks
While the FAA’s slow pace continues to delay Starhopper’s second major flight test, SpaceX CEO Elon Musk says that his planned Starship 2019 presentation will also be delayed and will instead follow a major integration milestone for the first orbital-class Starship prototype.
That milestone – likely representing the preliminary completion of Starship Mk1’s primary structure – could apparently come as early as mid-September, a claim that is at least partially supported by the relentless progress SpaceX has made in the last few weeks. Although a 200m (650 ft) Starhopper flight test would undeniably bode well for the health of SpaceX’s full-scale Raptor engine development, the partial completion of the first orbital-class Starship prototype would carry far more weight for the whole of SpaceX’s next-generation, fully-reusable launch vehicle.
Back in early August, about a week after Starhopper completed its inaugural July 25th flight test, Musk tweeted that his promised Starship update presentation would take place on August 24th, previously hoped to be “a few weeks” after Starhopper’s second major flight test.
He quickly confirmed that it would take place in Boca Chica, Texas, while also cryptically adding that Starship Mk1 could be “almost ready to fly” by then. This led your author to speculate just yesterday that any further FAA-related Starhopper delays could very well push the low-fidelity testbed into early retirement if Starships Mk1 and Mk2 can maintain their extremely rapid rate of progress.
“According to Musk, either or both of those orbital-class prototypes could be ready for their inaugural flight tests as early as mid-September, perhaps just 1-2 months from now. Given that Starships Mk1 and Mk2 are significantly higher fidelity than Starhopper, the ungainly testbed will likely become redundant the moment that its successors are ready for flight. In other words, Starhopper is fast approaching the end of its useful life, and SpaceX’s fight for a 200m hop-test permit could ultimately be a waste of time, effort, and money if said permit doesn’t also cover Starship Mk1.”
Teslarati.com, August 20th, 2019
Over the course of the last 3-4 weeks, SpaceX’s Starship assembly progress has been absolutely relentless, ranging from adding 20+ meters of height to tank sections, installing major fuel tank bulkheads, and more. Most notably, and to be discussed in greater detail in an upcoming Teslarati article, SpaceX has accepted delivery and begun installation of two identical triple-Raptor thrust structures and bulkhead seals in both Texas and Florida.
Additionally and at least as excitingly, SpaceX’s Boca Chica facilities accepted delivery of what is – by all appearances – the first finished Starship landing leg, likely one of two actuating fins per a September 2018 design update. According to Musk, the design of Starship’s aerodynamic control surfaces and legs has changed since that 2018 update, but the leg that was delivered on August 18th certainly looks almost exactly like those pictured in official SpaceX media dated before Musk’s reported changes.
Just like official pre-steel renders from SpaceX, the delivered leg appears to have attachment points and hinges on its cylindrical end, while the bulk of the leg is tapered. Fascinatingly, the leg’s exterior appears to have been constructed primarily via riveting steel, producing an aesthetic that screams “steampunk spaceship”.
In short, given just how fast SpaceX is progressing with Starship Mk1and Mk2 and combined with the FAA’s permitting delays, it’s not surprising in the slightest that CEO Elon Musk has decided that the official 2019 update would be better accompanied by a major Starship Mk1 milestone. According to Musk, Starship Mk1 and Mk2 could actually be ready for their first flight tests – powered by at least three Raptor engines – as early as mid-September to mid-October.
By all appearances, ~4 weeks is an eternity in Starship assembly time and Musk’s now-mid-September presentation will almost certainly be worth waiting for.
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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
