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SpaceX on track for US Air Force Falcon 9 mission later this year

Falcon 9 B1054 rolls out to Launch Complex 40 (LC-40) with GPS III satellite SV01, ready for a December 2018 launch debut. (SpaceX/USAF)

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Reading between the lines, the US Air Force has effectively confirmed that GPS III Space Vehicle 03 (SV03) – the third GPS III satellite built by Lockheed Martin – is ready for launch aboard a SpaceX Falcon 9 rocket, scheduled no earlier than December 2019.

In December 2018, SpaceX successfully launched the first GPS III spacecraft aboard an expendable Falcon 9 Block 5 rocket, kicking off a launch campaign – shared between SpaceX and ULA – that will likely last until 2023 or 2024. Thus far, ULA has won a single GPS III launch contract, scheduled for July 2019, while SpaceX has won three (with options for two more). Thanks to competition forcefully reintroduced by a 2014 SpaceX lawsuit, the USAF – and thus US taxpayers – are likely saving a minimum of $50M per GPS III launch.

In late 2018, SpaceX’s closer followers were surprised to discover that brand new Falcon 9 Block 5 booster B1054 – the first to be officially certified for a critical operational military launch – was to be expended, making no attempt to land. This was confusing for several reasons.

“If Falcon 9 [was to be] expended solely because of mission performance requirements, despite the oddly low payload mass (~3800 kg) and comparatively low-energy orbit (~20,000 km), the only possible explanation for no attempted recovery would be the need for Falcon 9’s upper stage to circularize the orbit after a long coast. However, the mission parameters the USAF shopped around for would have placed the GPS III satellite into an elliptical orbit of 1000 km by 20,181 km, an orbit that would almost without a doubt leave Falcon 9 with enough propellant for a drone ship recovery.”
Teslarati.com, December 2018

As it turns out, there was, in fact, nothing unique about the elliptical, medium-energy orbit GPS III SV01 was placed in. According to external analysis of the Falcon 9 upper stage’s final deorbit activities, SpaceX had “plenty of extra performance available”, objectively indicating that that excess performance was intentionally removed from booster B1054 at the cost of its ability to land. The (unconfirmed) reason for this is quite simple: the US Air Force chose extreme – perhaps even excessive – caution to account for the minute chance that myriad failures might happen mid-launch.

To sacrifice, or not to sacrifice

According to a USAF statement made in mid-May, GPS III Space Vehicle 03 (SV03) has been officially classed as “available for launch”, jargon that means the satellite is fully assembled and has successfully completed extensive pre-launch testing. For SpaceX’s inaugural GPS III launch (SV01), a pathfinder that carried unique wait and likely took additional processing time, SpaceX and the USAF took roughly five months to go from shipping the satellite to Florida to going vertical atop Falcon 9. More likely than not, GPS III SV03 has already begun to be prepared for transport from California to Florida, meaning that SV03 is roughly 1-2 months ahead of the schedule SV01 followed ahead of its Falcon 9 launch debut.

So: the GPS III satellite is ready for launch. The next critical milestones will be the satellite’s transport to Florida and SpaceX’s completion of the mission’s USAF-grade Falcon 9. B1054’s technically unnecessary sacrifice thus raises a question for SpaceX’s next GPS III launch, currently scheduled no earlier than December 2018: will another fresh Falcon 9 Block 5 booster be sacrificed to the gods of Obsessively Cautious Margins?

SpaceX prepares Falcon 9 B1054 for the company’s first major USAF launch and Block 5’s first expendable mission. (SpaceX/USAF)

The optimist in me wants to say, “Of course!” With GPS III SV01, SpaceX perfectly demonstrated Falcon 9’s performance and permitted the USAF the luxury of expending a brand new Falcon 9 booster to satisfy the customer’s desire for extremely cautious margins. The Falcon 9 upper stage’s luxuriously expensive (in terms of delta V) deorbit burns – performed after a several-hour cost in orbit – served as another definitive demonstration of the rocket’s intentionally underutilized performance. Having demonstrated a flawless launch with margins on margins, it seems reasonable that the US Air Force would permit SpaceX the freedom to recover Falcon 9 B105x after launching GPS III SV03.

On the other hand, the USAF and Department of Defense are not exactly known for their rational, evidence-based strategies of decision-making and procurement. As such, it’s safe to say that – without official info from SpaceX or the USAF – the answer to the question of whether SpaceX will need to continue expending valuable boosters for GPS launches is entirely up in the air – call it a 50-50 split.

Falcon 9 lifts off with the US Air Force’s first $500M GPS III spacecraft, December 2018. (SpaceX)

In the meantime, GPS III SV03’s Falcon 9 booster is likely several months away from shipping off to SpaceX’s McGregor, Texas facilities for static fire testing. Up next for SpaceX is a critical Falcon Heavy launch that could secure the rocket’s certification for US military launches, become the first USAF mission to utilize flight-proven SpaceX boosters, and pave the way for the USAF to develop a dedicated certification process for launching on commercially-developed reusable rockets.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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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.

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Credit: xAI

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.

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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.

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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.

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Credit: Tesla

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.

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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.

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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.

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Credit: ANCAP

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.

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“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.

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