News
SpaceX to replicate Starbase, build multiple Starship launch pads in Florida
Less than two weeks after CEO Elon Musk revealed that SpaceX has restarted construction of a Starship launch site at Kennedy Space Center’s existing LC-39A pad, NASA has revealed the company’s plans for an entirely different Starship launch site just a few miles to the north.
Known as Launch Complex 49 (LC-49) and located where NASA once considered building LC-39C, a third Saturn-class pad to match 39A and 39B, NASA now says that SpaceX aims to develop the site into a dedicated Starship launch pad. The plot of land NASA deemed LC-49 as recently as 2017 sits about 1 mile (1.6 km) northwest of NASA’s LC-39B Space Launch System (SLS) pad and 3 miles (5 km) northwest of LC-39A, which SpaceX has leased since 2014 and launched out of since 2017. Unlike 39A, though, SpaceX has a huge amount of work – and major environmental reviews – ahead of it to turn LC-49 into a site capable of launching a rocket more than twice as powerful as Saturn V.
As of today, “LC-49” amounts to a mostly arbitrary dotted line on a map. Situated a few thousand feet south of the lovingly named Mosquito Lagoon Aquatic Preserve and Canaveral Seashore National Park, the site encompasses a variety of wild wetlands and is fully undeveloped. While substantially wetter, the land SpaceX hopes to develop is actually quite similar to the site that now hosts Starbase’s Starship launch facilities in Boca Chica, Texas. Prior to SpaceX’s arrival, the area was empty coastal mudflats.
To turn such a fragile and unstable area into an orbital launch site, SpaceX trucked in thousands of tons of soil, which then sat in a pile for three years ‘surcharging’ or compressing the ground beneath it. Ironically, while SpaceX did build a relatively small suborbital launch site where it surcharged, the company has built the site’s first orbital Starship launch pad a bit to the east, where no such preparations were made. That bodes well for the speed with which SpaceX could potentially build LC-49 from nothing, though it will likely be significantly more of a challenge.
Because NASA’s proposed LC-49 site is effectively swamp and marshland, SpaceX will have to create the ground any planned Starship launch site will stand on. It’s possible that soil surcharging will be required – and potentially on an even larger scale than what SpaceX did in Boca Chica. However, given that SpaceX ultimately didn’t even use that surcharged land to construct the orbital half of the pad, it’s possible that SpaceX will again be able to make do with less time-consuming construction methods. If SpaceX does more or less replicate an orbital launch site similar to Starbase’s, the pad could be ready to launch just 12-18 months later. NASA and SpaceX will have to complete environmental reviews along the way but given planning work that NASA’s already done over the decades, it’s possible that SpaceX will be able to start building LC-49 well before that process – which could take one or several years – is complete.
No less intriguing is NASA’s implication that SpaceX is simultaneously preparing to expand a facility it leases elsewhere at Kennedy Space Center. Currently used to process and store Falcon boosters, fairings, and upper stages, SpaceX has been clearing a lot beside that hangar that’s about the same size as the entirety of Starbase’s South Texas Starship factory. The obvious implication: SpaceX intends to both build and launch Starships out of multiple Florida launch pads.
Just a few miles south, CEO Elon Musk says that SpaceX has restarted work on a separate Starship launch pad situated on Pad 39A grounds after halting construction last year to focus on South Texas. SpaceX chose to entirely scrap the unfinished launch mount it had built, clearing the site for the construction of a new and improved version of Starbase’s orbital launch site. Altogether, SpaceX is now simultaneously constructing two orbital Starship launch pads (one at Starbase and one at 39A) and planning for the construction of two or three more (a second at Starbase and at least one or two at LC-49).
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
