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SpaceX loses dozens of new Starlink satellites to “geomagnetic storm”
SpaceX says that dozens of the 49 Starlink satellites aboard its most recent Starlink launch may have been doomed by a “geomagnetic storm” that arrived the day after.
In an update published on SpaceX.com, the company revealed that “up to 40 of the [49 Starlink V1.5] satellites [launched on February 3rd] will reenter or already have reentered the Earth’s atmosphere” after the “severity of the storm caused atmospheric drag to increase up to 50 percent higher” relative to past Starlink launches. The incident is likely the first time in spaceflight history that a geomagnetic storm – solar weather – has caused satellites to fail because of its effects on Earth’s atmosphere.
There’s some ambiguity in SpaceX’s statement as to how exactly the storm caused up to 40 Starlink satellites to fail or if those satellites actually failed, per se. According to SpaceX, a geomagnetic storm that began on February 4th caused “the atmosphere to warm and atmospheric density at [the mission’s] low deployment altitudes to increase [up to 50%],” thereby increasing the drag on each Starlink satellite by the same amount. SpaceX intentionally launches almost every batch of Starlink satellites to very low parking orbits with perigees (the point of the orbit closest to Earth) around 200 kilometers (125 mi).
At that altitude, both Falcon 9’s upper stage and malfunctioning Starlink satellites will naturally reenter Earth’s atmosphere in a matter of weeks or even days, thus guaranteeing that satellites that fail early on won’t become space debris. Only the Starlink satellites that pass initial testing in orbit are allowed to raise themselves to operational orbits around 550 kilometers (340 mi), where a failed satellite will instead take years to deorbit. Just 500 kilometers higher, natural decay takes decades or even centuries.
For Starlink 4-7, it’s ambiguous if the radiation environment created by the geomagnetic storm or days of exposure to the edge of the atmosphere actually damaged dozens of Starlink satellites beyond recovery or if they simply deorbited so quickly in the unusual environment that they fell past the point of no return. In the latter scenario, the incident is effectively an unforeseen fluke of nature – especially given that three-dozen other Starlink launches have run into no such issues in the last three years. In the fluke-of-nature scenario, it’s also unclear if SpaceX could have predicted – and thus prevented – the anomaly.
SpaceX says it “commanded the satellites into a safe-mode where they would fly edge-on (like a sheet of paper) to minimize drag” as soon as it was aware of the issue but that “the increased drag…prevented the satellites from leaving safe-mode to begin orbit raising maneuvers.” Based on that phrasing, the most obvious explanation is that the added drag caused up to 40 of the satellites to fall far enough into the atmosphere that their ion thrusters would no longer be able to raise their orbits faster than the drag was lowering them. Raising their solar arrays into the position needed for maximum power generation (and thus maximum sustained thrust) would also drastically accelerate reentry.
The 40 satellites SpaceX believes will be lost likely cost the company anywhere from $10 million to $40 million to build, making for a very expensive lesson. The anomaly also means that SpaceX will likely need to factor in yet another weather condition – geomagnetic storms – into Starlink launch planning. If a bit more time could have saved Starlink 4-7, it’s possible that the company will also consider slightly raising the low parking orbits used for Starlink, trading slightly slower natural reentries to reduce the risk of losing dozens of brand new satellites again.
Elon Musk
Elon Musk’s xAI brings 1GW Colossus 2 AI training cluster online
Elon Musk shared his update in a recent post on social media platform X.
xAI has brought its Colossus 2 supercomputer online, making it the first gigawatt-scale AI training cluster in the world, and it’s about to get even bigger in a few months.
Elon Musk shared his update in a recent post on social media platform X.
Colossus 2 goes live
The Colossus 2 supercomputer, together with its predecessor, Colossus 1, are used by xAI to primarily train and refine the company’s Grok large language model. In a post on X, Musk stated that Colossus 2 is already operational, making it the first gigawatt training cluster in the world.
But what’s even more remarkable is that it would be upgraded to 1.5 GW of power in April. Even in its current iteration, however, the Colossus 2 supercomputer already exceeds the peak demand of San Francisco.
Commentary from users of the social media platform highlighted the speed of execution behind the project. Colossus 1 went from site preparation to full operation in 122 days, while Colossus 2 went live by crossing the 1-GW barrier and is targeting a total capacity of roughly 2 GW. This far exceeds the speed of xAI’s primary rivals.
Funding fuels rapid expansion
xAI’s Colossus 2 launch follows xAI’s recently closed, upsized $20 billion Series E funding round, which exceeded its initial $15 billion target. The company said the capital will be used to accelerate infrastructure scaling and AI product development.
The round attracted a broad group of investors, including Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX, and Baron Capital Group. Strategic partners NVIDIA and Cisco also continued their support, helping xAI build what it describes as the world’s largest GPU clusters.
xAI said the funding will accelerate its infrastructure buildout, enable rapid deployment of AI products to billions of users, and support research tied to its mission of understanding the universe. The company noted that its Colossus 1 and 2 systems now represent more than one million H100 GPU equivalents, alongside recent releases including the Grok 4 series, Grok Voice, and Grok Imagine. Training is also already underway for its next flagship model, Grok 5.
Elon Musk
Tesla AI5 chip nears completion, Elon Musk teases 9-month development cadence
The Tesla CEO shared his recent insights in a post on social media platform X.
Tesla’s next-generation AI5 chip is nearly complete, and work on its successor is already underway, as per a recent update from Elon Musk.
The Tesla CEO shared his recent insights in a post on social media platform X.
Musk details AI chip roadmap
In his post, Elon Musk stated that Tesla’s AI5 chip design is “almost done,” while AI6 has already entered early development. Musk added that Tesla plans to continue iterating rapidly, with AI7, AI8, AI9, and future generations targeting a nine-month design cycle.
He also noted that Tesla’s in-house chips could become the highest-volume AI processors in the world. Musk framed his update as a recruiting message, encouraging engineers to join Tesla’s AI and chip development teams.
Tesla community member Herbert Ong highlighted the strategic importance of the timeline, noting that faster chip cycles enable quicker learning, faster iteration, and a compounding advantage in AI and autonomy that becomes increasingly difficult for competitors to close.
AI5 manufacturing takes shape
Musk’s comments align with earlier reporting on AI5’s production plans. In December, it was reported that Samsung is preparing to manufacture Tesla’s AI5 chip, accelerating hiring for experienced engineers to support U.S. production and address complex foundry challenges.
Samsung is one of two suppliers selected for AI5, alongside TSMC. The companies are expected to produce different versions of the AI5 chip, with TSMC reportedly using a 3nm process and Samsung using a 2nm process.
Musk has previously stated that while different foundries translate chip designs into physical silicon in different ways, the goal is for both versions of the Tesla AI5 chip to operate identically. AI5 will succeed Tesla’s current AI4 hardware, formerly known as Hardware 4, and is expected to support the company’s Full Self-Driving system as well as other AI-driven efforts, including Optimus.
News
Tesla Model Y and Model 3 named safest vehicles tested by ANCAP in 2025
According to ANCAP in a press release, the Tesla Model Y achieved the highest overall weighted score of any vehicle assessed in 2025.
The Tesla Model Y recorded the highest overall safety score of any vehicle tested by ANCAP in 2025. The Tesla Model 3 also delivered strong results, reinforcing the automaker’s safety leadership in Australia and New Zealand.
According to ANCAP in a press release, the Tesla Model Y achieved the highest overall weighted score of any vehicle assessed in 2025. ANCAP’s 2025 tests evaluated vehicles across four key pillars: Adult Occupant Protection, Child Occupant Protection, Vulnerable Road User Protection, and Safety Assist technologies.
The Model Y posted consistently strong results in all four categories, distinguishing itself through a system-based safety approach that combines structural crash protection with advanced driver-assistance features such as autonomous emergency braking, lane support, and driver monitoring.
This marked the second time the Model Y has topped ANCAP’s annual safety rankings. The Model Y’s previous version was also ANCAP’s top performer in 2022.
The Tesla Model 3 also delivered a strong performance in ANCAP’s 2025 tests, contributing to Tesla’s broader safety presence across segments. Similar to the Model Y, the Model 3 also earned impressive scores across the ANCAP’s four pillars. This made the vehicle the top performer in the Medium Car category.
ANCAP Chief Executive Officer Carla Hoorweg stated that the results highlight a growing industry shift toward integrated safety design, with improvements in technologies such as autonomous emergency braking and lane support translating into meaningful real-world protection.
“ANCAP’s testing continues to reinforce a clear message: the safest vehicles are those designed with safety as a system, not a checklist. The top performers this year delivered consistent results across physical crash protection, crash avoidance and vulnerable road user safety, rather than relying on strength in a single area.
“We are also seeing increasing alignment between ANCAP’s test requirements and the safety technologies that genuinely matter on Australian and New Zealand roads. Improvements in autonomous emergency braking, lane support, and driver monitoring systems are translating into more robust protection,” Hoorweg said.
Elon Musk’s xAI brings 1GW Colossus 2 AI training cluster online
Tesla AI5 chip nears completion, Elon Musk teases 9-month development cadence
