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SpaceX’s Starlink successes secure US military contract for custom satellites
SpaceX has won $149 million from the Space Development Agency (SDA) to leverage the successes of its Starlink constellation and build custom satellites for the US Department of Defense (DoD).
The development comes as no surprise after SpaceX spent more than six months publishing dozens of job openings for satellite design, development, test, and integration engineers with “top secret” security clearance. Thanks to that paper trail, it’s been apparent for quite some time that SpaceX planned to leverage its nascent satellite design and production capabilities to build custom spacecraft – and even entire constellations – for customers outside of the company.
Perhaps less than coincidentally, that capability closely mirrors a growing desire in the US military to return some level of agility, innovation, and affordability to the development and procurement of space systems (mainly satellites and the ground systems needed to control and communicate with them).

In classic US military fashion, SDA’s contracts appear to mirror DARPA’s (Defense Advanced Research Projects Agency) own Blackjack program. According to DARPA, the “Blackjack program aims to develop and demonstrate the critical elements for a global high-speed network in low Earth orbit (LEO) that provides the Department of Defense with highly connected, resilient, and persistent coverage.” At one point, SDA was seriously considering a role in DARPA’s Blackjack but had no plans to put money where its mouth was as recently as February 2020.
However, in a June 2020 interview, Blackjack project manager Paul Thomas deemed SDA a “very, very awesome partner” that will be directly involved in the launch of two early Blackjack testbed satellites later this year – to be followed by a “subconstellation” (~20 satellites) in 2022.
SDA’s October 5th, 2020 contract awarded SpaceX and L3Harris $149 million and $193 million, respectively, to build four satellites that will spot and track missile launches with wide-field-of-view (WFOV) “overhead persistent infrared” (OPIR) sensors. SDA expects the spacecraft to be ready for launch by September 2022. SpaceX will outsource its OPIR sensors to an unknown company, while L3Harris – already an expert of complex sensor design and production – will build and integrate its own. Bizarrely, DARPA awarded Raytheon $37 million in June 2020 to build and deliver two OPIR sensors for Blackjack satellites by April 2023 – seemingly unrelated to SDA’s October 2020 contract for eight OPIR satellites.
If things go as planned, the eight OPIR satellites SDA is paying $342 million to develop and launch will be the start of a 30-satellite “Tracking Layer” constellation. The Tracking Layer constellation will integrate with a separate “Transport Layer” of 20 laser-interlinked relay satellites to be built by Lockheed Martin ($187.5M) and York Space Systems ($94M) for ~$282 million and launched by September 2022.
Ultimately, it’s ambiguous just how closely SDA and DARPA are working on what currently appear to be separate, partially duplicative constellations of small satellites. Relative to DARPA’s Blackjack program, SDA is pursuing a far more ambitious schedule and has wagered far more resources (more than half a billion dollars) on its plans for a new missile-warning satellite constellation. If SpaceX, L3Harris, Lockheed Martin, and York Space Systems complete their respective work on schedule, SDA could effectively go from the drawing board to an unprecedentedly affordable constellation of 50 cutting-edge satellites in just 28 months – and all while spreading its risk between four unique companies.
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Nvidia CEO Jensen Huang explains difference between Tesla FSD and Alpamayo
“Tesla’s FSD stack is completely world-class,” the Nvidia CEO said.
NVIDIA CEO Jensen Huang has offered high praise for Tesla’s Full Self-Driving (FSD) system during a Q&A at CES 2026, calling it “world-class” and “state-of-the-art” in design, training, and performance.
More importantly, he also shared some insights about the key differences between FSD and Nvidia’s recently announced Alpamayo system.
Jensen Huang’s praise for Tesla FSD
Nvidia made headlines at CES following its announcement of Alpamayo, which uses artificial intelligence to accelerate the development of autonomous driving solutions. Due to its focus on AI, many started speculating that Alpamayo would be a direct rival to FSD. This was somewhat addressed by Elon Musk, who predicted that “they will find that it’s easy to get to 99% and then super hard to solve the long tail of the distribution.”
During his Q&A, Nvidia CEO Jensen Huang was asked about the difference between FSD and Alpamayo. His response was extensive:
“Tesla’s FSD stack is completely world-class. They’ve been working on it for quite some time. It’s world-class not only in the number of miles it’s accumulated, but in the way it’s designed, the way they do training, data collection, curation, synthetic data generation, and all of their simulation technologies.
“Of course, the latest generation is end-to-end Full Self-Driving—meaning it’s one large model trained end to end. And so… Elon’s AD system is, in every way, 100% state-of-the-art. I’m really quite impressed by the technology. I have it, and I drive it in our house, and it works incredibly well,” the Nvidia CEO said.
Nvidia’s platform approach vs Tesla’s integration
Huang also stated that Nvidia’s Alpamayo system was built around a fundamentally different philosophy from Tesla’s. Rather than developing self-driving cars itself, Nvidia supplies the full autonomous technology stack for other companies to use.
“Nvidia doesn’t build self-driving cars. We build the full stack so others can,” Huang said, explaining that Nvidia provides separate systems for training, simulation, and in-vehicle computing, all supported by shared software.
He added that customers can adopt as much or as little of the platform as they need, noting that Nvidia works across the industry, including with Tesla on training systems and companies like Waymo, XPeng, and Nuro on vehicle computing.
“So our system is really quite pervasive because we’re a technology platform provider. That’s the primary difference. There’s no question in our mind that, of the billion cars on the road today, in another 10 years’ time, hundreds of millions of them will have great autonomous capability. This is likely one of the largest, fastest-growing technology industries over the next decade.”
He also emphasized Nvidia’s open approach, saying the company open-sources its models and helps partners train their own systems. “We’re not a self-driving car company. We’re enabling the autonomous industry,” Huang said.
Elon Musk
Elon Musk confirms xAI’s purchase of five 380 MW natural gas turbines
The deal, which was confirmed by Musk on X, highlights xAI’s effort to aggressively scale its operations.
xAI, Elon Musk’s artificial intelligence startup, has purchased five additional 380 MW natural gas turbines from South Korea’s Doosan Enerbility to power its growing supercomputer clusters.
The deal, which was confirmed by Musk on X, highlights xAI’s effort to aggressively scale its operations.
xAI’s turbine deal details
News of xAI’s new turbines was shared on social media platform X, with user @SemiAnalysis_ stating that the turbines were produced by South Korea’s Doosan Enerbility. As noted in an Asian Business Daily report, Doosan Enerbility announced last October that it signed a contract to supply two 380 MW gas turbines for a major U.S. tech company. Doosan later noted in December that it secured an order for three more 380 MW gas turbines.
As per the X user, the gas turbines would power an additional 600,000+ GB200 NVL72 equivalent size cluster. This should make xAI’s facilities among the largest in the world. In a reply, Elon Musk confirmed that xAI did purchase the turbines. “True,” Musk wrote in a post on X.
xAI’s ambitions
Recent reports have indicated that xAI closed an upsized $20 billion Series E funding round, exceeding the initial $15 billion target to fuel rapid infrastructure scaling and AI product development. The funding, as per the AI startup, “will accelerate our world-leading infrastructure buildout, enable the rapid development and deployment of transformative AI products.”
The company also teased the rollout of its upcoming frontier AI model. “Looking ahead, Grok 5 is currently in training, and we are focused on launching innovative new consumer and enterprise products that harness the power of Grok, Colossus, and 𝕏 to transform how we live, work, and play,” xAI wrote in a post on its website.
Elon Musk
Elon Musk’s xAI closes upsized $20B Series E funding round
xAI announced the investment round in a post on its official website.
xAI has closed an upsized $20 billion Series E funding round, exceeding the initial $15 billion target to fuel rapid infrastructure scaling and AI product development.
xAI announced the investment round in a post on its official website.
A $20 billion Series E round
As noted by the artificial intelligence startup in its post, the Series E funding round attracted a diverse group of investors, including Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX, and Baron Capital Group, among others.
Strategic partners NVIDIA and Cisco Investments also continued support for building the world’s largest GPU clusters.
As xAI stated, “This financing will accelerate our world-leading infrastructure buildout, enable the rapid development and deployment of transformative AI products reaching billions of users, and fuel groundbreaking research advancing xAI’s core mission: Understanding the Universe.”
xAI’s core mission
Th Series E funding builds on xAI’s previous rounds, powering Grok advancements and massive compute expansions like the Memphis supercluster. The upsized demand reflects growing recognition of xAI’s potential in frontier AI.
xAI also highlighted several of its breakthroughs in 2025, from the buildout of Colossus I and II, which ended with over 1 million H100 GPU equivalents, and the rollout of the Grok 4 Series, Grok Voice, and Grok Imagine, among others. The company also confirmed that work is already underway to train the flagship large language model’s next iteration, Grok 5.
“Looking ahead, Grok 5 is currently in training, and we are focused on launching innovative new consumer and enterprise products that harness the power of Grok, Colossus, and 𝕏 to transform how we live, work, and play,” xAI wrote.