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SpaceX to in-house mass production of Starlink internet satellite hardware
SpaceX is rapidly expanding it’s Starlink internet constellation development to prepare for full-scale production and aims to bring nearly every major piece of satellite and network hardware and software in-house, according to details revealed in dozens of job postings.
While not explicit, this appears to indicate a significant convergence of multiple possible paths to an operational constellation. Put simply, SpaceX now intends to build every single major component of its 4400+ satellite network in-house. It’s almost easier to list the things SpaceX does not mean to build themselves, but here’s a stab at the components to be built in-house: satellite structures, laser (optical) data interlinks, on-orbit phased array antennae, digital signal processor (DSPs) software and hardware to aim those antennae, solar arrays, battery systems, power electronics, custom integrated circuitry and systems on a chip (SoCs), user terminals and larger gateways, network operations, production automation, autonomous satellite constellation management, and much, much more.
Remote camera has been retrieved, wet with morning dew…and WITH images! Awesome launch by SpaceX. @teslarati #SpaceX #Paz #Starlink pic.twitter.com/tDTXxZErN4
— Pauline Acalin (@w00ki33) February 22, 2018
While entire articles could be spent describing the complexities of every single one of the above subsystems, the point is that SpaceX appears to have gone all-in on building its own satellite constellation, departing from stances in the past that appeared to leave room for subcontracting and outsourcing the production of major parts of the network, particularly with respect to ground terminals and gateways. Postings for ground station and user terminal engineers describe a goal of medium to high volume in-house production of the critical network and customer-facing hardware, and an entry into the production of high volume consumer technology would be a truly eclectic and unprecedented step for a company theoretically focused on launch vehicle development and production and sustainable Mars colonization.
If anything, they speak to the truly vertical nature of SpaceX. Many technology development production companies would simply accede and accept the best subcontractor/outsourcing bid when entering into new territory truly outside of their internal expertise. SpaceX engineers and managers, however, seem to have concluded that the vast majority of hardware and corporate expertise they could co-opt is just not satisfactory for the purpose of building a paradigm-shifting satellite constellation; or as CEO Elon Musk noted in 2015, to “revolutionize the satellite side of things, just as we’ve done with the rocket side of things.”
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- SpaceX’s first Starlink prototypes launched in late February aboard a flight-proven Falcon 9 booster. (Pauline Acalin)
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- SpaceX’s first two Starlink prototype satellites are pictured here before their inaugural Feb. 2018 launch, showing off a utilitarian design. (SpaceX)
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- Falcon 9 roars into the dark California sky with PAZ and Starlink. (Pauline Acalin)
This new (and, in retrospect, unsurprising) trailblazing attitude also helps to explain the marginal delay to Musk’s original 2015 schedule, which estimated initial constellation operations (i.e. a few hundred satellites launched) would begin around 2020. Approximately a year later, SpaceX had built rough prototypes in the form of the original Microsat 1A and 1B twins. This initial foray into independent, long-term communications smallsats was shuttered fairly quickly, and neither of the demo satellites were launched. Instead, SpaceX dove back into prototype design and development, culminating roughly two years later with the March 2018 launch of two dramatically improved prototypes, known as Tintin A and B (or Microsats 2A and 2B in FCC licenses).
It seems probable that the source of this delay lay in an internal decision to dramatically reconfigure the internet constellation for far more in-house development, whereas the original Microsats were likely pieced together from a range of components derived from SpaceX’s Cargo Dragon program or more simply from commercial off-the-shelf (COTS) offerings. Instead, SpaceX’s Starlink development offices in Redmond, Washington and throughout California are staffed with as many as 400 to 500 employees dedicated in large part to the nascent program, similar (if not larger) in scale to OneWeb, the only noteworthy satellite internet competitor at present.
If SpaceX’s decision to push back Starlink’s operational debut by a few years in order to bring in-house almost every single critical subcomponent of Starlink pays off, the company could begin launching finalized satellites en masse as early as late 2019/early 2020, with a goal of offering limited service by 2021 per comments made by CEO Elon Musk. Starlink is likely being brought almost entirely in-house because Musk or other high-level executives and engineers see major room for improvement, improvements that could lower the cost of and improve the performance of lightweight communications satellites by an order of magnitude.
A flight-proven Falcon 9 prepares for launch in May 2018. SpaceX will likely launch at least one more pair of Starlink demo satellites from the West coast later this year (Pauline Acalin)
It will likely take a bit longer than initially expected, but SpaceX may yet still pave their path to Mars colonization with profits derived from a wildly successful and disruptive entrance into the broadband market.
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
