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SpaceX to launch Europe’s next deep space telescope, first asteroid orbiter
On October 17th, a NASA official speaking at an Astrophysics Advisory Committee meeting revealed that the European Space Agency (ESA) had begun “exploring options” and studying the feasibility of launching the Euclid near-infrared space telescope on SpaceX’s Falcon 9 rocket.
In a major upset, director Josef Aschbacher confirmed less than three days later that ESA will contract with SpaceX to launch the Euclid telescope and Hera, a multi-spacecraft mission to a near-Earth asteroid, after all domestic alternatives fell through.
The European Union and, by proxy, ESA, are infamously insular and parochial about rocket launch services. That attitude was largely cultivated by ESA and the French company Arianespace’s success in the international commercial launch market in the 1980s, 1990s, and 2000s – a hard-fought position that all parties eventually seemed to take for granted. When that golden era slammed headfirst into the brick wall erected by SpaceX in the mid-2010s, Arianespace found itself facing a truly threatening competitor for the first time in 15+ years.
More importantly, ESA and the EU had minimal sway over SpaceX and could do very little to halt the private company from quickly becoming a leader of the international launch industry. Much like the traditional US launch industry that SpaceX also aggressively disrupted, ESA, EU, and Ariane officials remained in denial well into the late 2010s, even as SpaceX devoured their market share.
When ESA and Arianespace began work on a rocket to follow their highly successful and once-competitive Ariane 5 in the early and mid-2010s, they also ignored SpaceX’s loud pursuit of affordable launches through reusable rockets. European stakeholders ultimately opted to develop a fully-expendable successor – Ariane 6 – that merely tweaked the ingredients of the proven Ariane 5 formula. But after choosing the path of least resistance in 2014, Ariane 6’s launch debut has still slipped from 2020 to “late 2023” at the earliest, causing chaos for many of the commercial and institutional European payloads assigned to the rocket over the years.
Then, in February 2022, Russia illegally invaded Ukraine a second time, throwing all other aspects of Europe into chaos. As part of the hostilities and in response to widespread European criticism, Russia took a batch of US-built, British-owned OneWeb satellites hostage, stole the Soyuz rocket they had already purchased, and reneged on a launch deal in a move that cost the company hundreds of millions of dollars. Doubling down, they also officially withdrew from all partnerships with ESA and Arianespace, ending the practice of Europeanized Soyuz launches and leaving multiple joint missions stranded or in limbo.
Euclid was one such mission. Development of the small near-infrared space telescope began in the early 2010s and was predicted to cost “more than 1 billion Euros” as of 2013. At the time, a European Soyuz 2.1 rocket was scheduled to launch Euclid to the Sun-Earth system’s L2 Lagrange point as early as 2020. After Russia’s second invasion of Ukraine killed Soyuz as an option, ESA briefly claimed that it would instead launch Euclid on Ariane 6.
In October 2022, ESA announced that Ariane 6’s launch debut would be delayed from its current target of late 2022 to late 2023 or even early 2024. As a result, 13 satellites – most of which are European – found themselves at risk of 6, 12, or even 18+ months of guaranteed launch delays. Less than 24 hours after announcing the latest in a long line of major Ariane 6 delays, ESA’s director revealed that two of those 13 satellites were already being transferred to SpaceX Falcon 9 rockets.
Given that Euclid was orphaned by a Russian rocket, it wasn’t a huge surprise for the telescope’s launch to be handed from Arianespace to SpaceX. However, the simultaneous announcement that Hera would follow suit was far more shocking. From the start, Hera was scheduled to be one of the first payloads launched by an Ariane 64 rocket with a new Astris kick stage under development at Arianespace.
Had Hera stuck with the first three-stage Ariane 6 after the two-stage version’s latest delay, the odds of missing its 17-day October 2024 window would have increased significantly. If Hera missed that brief window, orbital mechanics would cause backup opportunities in 2025 and 2026 to extend the mission’s cruise phase (travel time) from two years to more than five years.
The €290 million Hera mission’s primary purpose is to enter orbit around the near-Earth asteroid Didiymos and study a fresh impact crater on its moon, Dimorphos. That crater is fresh because it was intentionally created when NASA’s DART spacecraft slammed into the asteroid moon last month. Fittingly, SpaceX launched DART to Dimoprhos on a Falcon 9 rocket, and will now launch Hera in its footsteps as early as October 2024. Another Falcon 9 rocket will launch the Euclid telescope into deep space as early as mid-2023.
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
