News
SpaceX’s next Falcon Heavy begins to arrive at 39A as center core heads to TX
Approximately a week after a Falcon Heavy side booster – the first of two – arrived at SpaceX’s LC-39A launch complex, a sign of late-stage preparation for the massive rocket’s second and third launches, a Falcon Heavy center stage was spotted rolling through the Waco, Texas locale on its way to SpaceX’s McGregor testing facilities.
Signified by the outlines of unusual bumps under the Falcon booster’s protective shrink wrap, this probable Falcon Heavy center core’s Texas arrival indicates that SpaceX has most likely completed static fire testing of both side boosters, with the second booster now likely to depart McGregor and/or arrive at SpaceX’s Florida facilities in the coming weeks.
The first component of Falcon Heavy Block 5 has arrived at HLC-39A! https://t.co/38spGaCps9
— Thomas Burghardt (@TGMetsFan98) December 22, 2018
In February 2018, Falcon Heavy took flight for the first time ever, bringing to an end an almost mythical series of delays that pushed the rocket’s debut back more than five years. Aside from the unintentional demise of Falcon Heavy Flight 1’s center core, the inaugural launch was a spectacular and technologically valuable success, perfectly verifying the rocket’s ability to safely ignite, launch, separate, and recover two Falcon 9-class boosters simultaneously. SpaceX also took the opportunity – a payload with no practical value aside from inspiration – to perform a successful six-hour coast of the Falcon upper stage, demonstrating a capability critical for many potentially valuable launch contracts.
Now verified by planning schedules, SpaceX plans to attempt a truly impressive feat in the first half of 2019. Assuming all goes well during the center booster’s static fire and the subsequent integration and static fire of all three first stages, the company intends to launch the same Falcon Heavy hardware (all three boosters) twice in as little as two months, currently tentatively penciled in for February/March and April 2019.
Surprise sighting of a #SpaceX Falcon 9 rocket booster in my hometown headed a few minutes down the road to the McGregor, TX test site. First time in years seeing a booster in transit “in the wild” like this. 🚀 @elonmusk #falcon9 #falconheavy #STEM #bfr #space pic.twitter.com/daEz4NZPi5
— Abby Garrett (@abbygarrettart) January 1, 2019
Corroborated a few weeks ago by a NASA official involved in one of the payloads that will be present on that planned April launch, SpaceX plans to attempt recovery of both the side boosters and center core and rapidly refurbish them after their first launch in February or March, nominally placing the 6000 kg (~13,200 lb) Arabsat 6A satellite into a high-energy orbit. Perhaps as few as 4-8 weeks later, the rocket will be reintegrated, perform a second static fire at Pad 39A, and launch once again with a USAF rideshare known as Space Test Program (STP) 2, a program specifically designed to allow the Air Force to support low-risk test launches of unproven rockets.
Even more so than the fact that an ~8-week Falcon Heavy turnaround would simultaneously break SpaceX’s previous booster turnaround record in triplicate, the biggest reason to be skeptical of these plans is the fact that this schedule appears to require that the USAF fly a mission on not one but three flight-proven Falcon boosters. This stands at odds with the military branch’s unwillingness (by all appearances) to so much as allow a brand new Falcon 9 enough propellant margin (typically just a few percent) to land itself after the December 23rd launch of GPS III SV01, let alone allow their satellites to ride on a previously-flown rocket.
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- Falcon Heavy is composed of a Falcon 9 upper stage and three Falcon 9-class boosters. (SpaceX)
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- Falcon Heavy’s simultaneous side booster recovery. This will likely be repeated for both Arabsat 6A and STP-2. (SpaceX)
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- The communications satellite Arabsat-6A. (Lockheed Martin)
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- The USAF’s STP-2, a combination of a few dozen different satellites. (USAF)
The major wrench in the machine here is the fact that GPS III SV01 most likely cost the USAF upwards of $700M to procure and will ultimately become a critical part of a widespread infrastructural upgrade, whereas STP-2 features two dozen or so small satellites worth dramatically less than the single GPS satellite SpaceX launched last month. STP-2 also operates under a program that is in large part meant to offer opportunities for new or wholly unproven launch vehicles (like Falcon Heavy) to conduct experimental launches, carrying the assumption that certifying those rockets for national security space (NSS) missions would be in the best interests of the Air Force and DoD.
As such, the back-to-back Falcon Heavy launch schedule is by no means impossible despite the fact that it offers up many reasons to doubt its plausibility. Either way, the fact that the next Falcon Heavy’s center core has already left SpaceX’s Hawthorne factory – following in the footsteps of two new side boosters – is a nearly unequivocal sign that the rocket’s second launch rapidly approaching.
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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:
“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
