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SpaceX sends Starship prototype to launch pad after engine installation
After several weeks of work back at SpaceX’s Starbase rocket factory, the company has transported a new and improved Starship prototype to nearby test and launch facilities, where it joined a similarly upgraded Super Heavy booster.
That Starship prototype – Ship 24 or S24 – is closely following in the footsteps of Super Heavy Booster 7 (B7), which kicked off a similar phase of preflight testing about two weeks ago. The purposes of their latest trips from the factory to the launch pad are also largely the same and could potentially open the door for Starship’s inaugural orbital launch attempt sometime later this year if the process goes smoothly. Both protypes have a ways to go, however.
Booster 7 and Ship 24 got off to fairly rocky starts when they began a less risky phase of proof testing in May and June. Apparently caused by improper sequencing or a small design flaw, a large steel tube meant to carry liquid methane fuel through Booster 7’s liquid oxygen tank and double as a storage vessel for landing propellant violently imploded when a vacuum formed inside it. It took SpaceX several weeks to repair the damage but, defying the odds, the tube was eventually repaired and Booster 7 completed another two proof tests soon after.
A few weeks later, during one of Ship 24’s first tests, a much smaller internal pipe – likely carrying high-pressure gas – also failed, damaging heat shield tiles and other adjacent plumbing. S24’s troubles were less dramatic and only took a few days to fix, but both were still new failure modes for the Starship program and served as a reminder that Starship hardware remains relatively immature and that SpaceX is still learning. Nonetheless, they also demonstrated SpaceX’s ability to respond quickly to new problems, as both B7 and S24 sailed through additional testing without apparent issue after quick repairs.
After completing cryogenic proof and thrust simulation testing, B7 and S24 returned to SpaceX’s factory facilities for Raptor installation and finishing touches. SpaceX took about six weeks to install 33 Raptor engines and associated heat shielding on Booster 7, while installing six Raptors and wrapping up a few other aspects of Ship 24 took about four weeks.
Aside from the installation of most of the Starship’s missing heat shield tiles, Ship 24’s preparations did include one particularly unique step involving its payload bay prototype. SpaceX’s first stab at a Starship payload bay has been likened to a giant Pez dispenser, which is not entirely inaccurate. Exclusive to Starlink, satellites will be stored on a rectangular rack that’s assumed to operate like an elevator. As an unknown mechanism pushes two satellites at a time through Starship’s slot-like bay door, the stack of satellites will feed downwards like bullets in a magazine until the full set is fully deployed.
In late June, SpaceX attached a giant white box to a crane and positioned the box to interface with Ship 24’s bay door, where it hung for the better part of a day. The test confirmed speculation that the box was meant to solve perhaps the most obvious problem SpaceX’s unique payload bay design posed: payload installation. SpaceX’s solution appears to involve using the deployment mechanism in reverse, with the white box conveying Starlink Gen2 satellites through the ‘slot’ and the dispenser grabbing and lifting each pair up into the bay.
It’s possible that Ship 24 will have a handful of Starlink V2/Gen2 satellites loaded into its bay if it passes its next tests. Before being cleared for flight, Ship 24 will need to complete at least one nominal wet dress rehearsal (simulating every aspect of a launch short of engine ignition) and one six-engine static fire, though several tests are far more likely. Starship S24’s test campaign will benefit significantly from Starship S20, which survived extensive testing (and multiple six-Raptor static fires) in 2021. In comparison, Super Heavy B7’s similar wet dress rehearsal and static fire test campaign will be almost entirely new to SpaceX, save for a single three-engine static fire completed by an outdated booster prototype last year.
SpaceX could attempt to static fire Booster 7 for the first time as early as Wednesday, July 6th. It’s unclear if the company will attempt to kick off Ship 24’s next round of testing in the gaps between Super Heavy B7’s static fire testing. While unlikely, SpaceX is technically capable of testing Ship 24 and Booster 7 simultaneously.
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
