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SpaceX crushes rocket engine world record during Raptor test

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CEO Elon Musk has revealed that SpaceX crushed a global rocketry record during a recent Raptor engine test, pushing the crucial Starship component past years-old performance targets.

On August 17th, the SpaceX CEO unexpectedly released a photo of a Raptor test and a corresponding graph showing the engine’s chamber pressure, confirming that the company had successfully pushed the engine to record-breaking levels. Musk says that an unspecified Raptor – possibly serial number 39 (SN39) – briefly reached a main combustion chamber pressure of 330 bar (~4800 psi) during a controlled burn – and remained intact after shutdown.

Outside of subscale laboratory tests, the highest main combustion chamber known to full-scale, orbital-class rocketry was achieved by the Soviet Union in the 1980s with the RD-701 engine. Although the exceptionally unique engine was canceled before it could be used, it reportedly reached pressures of 290-300 bar in one mode of operation. Now, however, SpaceX and its Raptor engine appear to be the new world record holders – and by a huge margin.

SpaceX’s Raptor engine (right) appears to have stolen the crown of RD-701, a ~35-year-old Soviet engine and technological marvel. (SpaceX)

Raptor’s new crown comes roughly 18 months after Elon Musk revealed that the engine had beaten the Soviet RD-270 full-flow staged combustion (FFSC) with a higher sustained chamber pressure (~257 bar vs 255 bar). A few days later, the same Raptor went even further, cresting the Russian RD-180 engine’s 257 bar operating pressure with a peak of 268 bar. Still, SpaceX needed 6-12 more months to refine Raptor into an engine capable of operating even close to those pressures for more than ~10 seconds. In July and August 2019, Raptor engine SN6 flew twice on Starhopper, culminating in a ~60-second, 150-meter hop that ended with the engine nearly destroying itself seconds before landing.

Almost exactly one year later, Raptor SN27 launched on Starship SN5 on the same 150m trajectory and appeared to perform flawlessly. Exhibiting barely a stutter or flare, SN27 never came close to the flamethrower-like death throes Raptor SN6 suffered in August 2019. In short, SpaceX continued to do what SpaceX does best, continuously refining rough prototypes into increasingly polished end products.

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Originally revealed in 2016 as a methane/oxygen full-flow staged combustion engine with an operating combustion chamber pressure of 300 bar (4350 psi), Raptor’s August 17th achievement means that SpaceX has already exceeded one of its performance goals. Of course, combustion chamber pressure is significant but still far less important than engine longevity, burn duration limits, and reusability in the context of Starship. SpaceX likely wouldn’t be pushing the envelope of chamber pressure if it wasn’t confident about Raptor’s many other important attributes, but it’s still unknown if Raptor has ever burned for longer than ~90 seconds.

Regardless, if Raptor can actually sustain chamber pressures of 330 bar without damaging itself, the milestone could mean that SpaceX has already boosted Raptor’s maximum thrust from ~200 metric tons to ~225 metric tons (440,000-500,000 lbf. For Starship and Super Heavy, that 10% increase in thrust could easily translate to a 5-10% increase in payload to orbit per launch.

A senior SpaceX engineer and executive believes that Starship’s first orbital launch could still happen by the end of the 2020. (SpaceX)

To reach orbit, though, Raptor still has a ways to go. For Super Heavy to be able to complete a normal launch, SpaceX will need to dramatically expand Raptor production (~31 engines per booster) and ensure that Raptor can reliably operate for 3-5+ minutes and reignite multiple times in flight. For Starship, SpaceX needs – at the minimum – to mature Raptor until it can burn continuously for 5-10 minutes to reach orbit. The company will likely also need to finish developing a custom vacuum-optimized version of Raptor for efficient orbital Starship flights.

Given just how quiet SpaceX is about most Raptor milestones, there’s a chance the company has already made substantial progress along those lines. For example, Starship SN8 – already well on its way to completion – will likely be the first prototype to fly with three Raptor engines and will need the ability to stop and start those engines in-flight to perform full-fidelity 20 km (~12.5 mi) launch and landing tests. Even just sustaining 330 bar for 10-100+ seconds without destroying the engine is likely several Raptor iterations away. Still, given SpaceX’s track record, all of those milestones are likely just a matter of time and perseverance.

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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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Tesla China hires Autopilot Test Engineer amid continued FSD rollout preparations

The role is based in Lingang, the district that houses Gigafactory Shanghai.

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Credit: Grok Imagine

Tesla is hiring an Autopilot Test Engineer in Shanghai, a move that signals continued groundwork for the validation of Full Self-Driving (FSD) in China. The role is based in Lingang, the district that houses Gigafactory Shanghai and has become a key testing zone for advanced autonomous features.

As observed by Tesla watchers, local authorities in Shanghai’s Nanhui New City within Lingang have previously authorized a fleet of Teslas to run advanced driving tests on public roads. This marked one of the first instances where foreign automakers were permitted to test autonomous driving systems under real traffic conditions in China. 

Tesla’s hiring efforts come amid ongoing groundwork for a full FSD rollout in China. Earlier reporting noted that Tesla China has been actively preparing the regulatory and infrastructure foundation needed for full FSD deployment, even though the company has not yet announced a firm launch date for the feature in the market.

As per recent comments from Tesla China Vice President Grace Tao, the electric vehicle maker has been busy setting up the necessary facilities to support FSD’s full rollout in the country. In a comment to local media, Tao stated that FSD should demonstrate a level of performance that could surpass human drivers once it is fully rolled out. 

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“We have set up a local training center in China specifically to handle this adaptation,” Tao said. “Once officially released, it will demonstrate a level of performance that is no less than, and may even surpass, that of local drivers.”

Tesla CEO Elon Musk has been quite bullish about a potential FSD rollout in China. During the 2025 Annual Shareholder Meeting, Musk emphasized that FSD had only received “partial approval” in China, though full authorization could potentially arrive around February or March 2026. This timeline was reiterated by the CEO during his appearance at the World Economic Forum in Davos.

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Tesla Model Y outsells all EV rivals in Europe in 2025 despite headwinds

The result highlights the Model Y’s continued strength in the region.

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Credit: Tesla

The Tesla Model Y was Europe’s most popular electric car in 2025, leading all EV models by a wide margin despite a year marked by production transition, intensifying competition, and anti-Elon Musk sentiments. 

The result highlights the Model Y’s continued strength in the region even as Volkswagen overtook Tesla as the top-selling EV brand overall.

As per data compiled by JATO Dynamics and reported by Swedish outlet Allt om Elbil, the Tesla Model Y recorded 149,805 registrations across Europe in 2025. That figure placed it comfortably at No. 1 among all electric car models in the region.

The Model Y’s performance in Europe is particularly notable given that registrations declined 28% year-over-year. The dip coincided with Tesla’s Q1 2025 transition to the updated Model Y, a changeover that temporarily affected output and deliveries in several markets. Anti-Elon Musk sentiments also spread across several European countries amidst the CEO’s work with U.S. President Donald Trump.

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Even with these disruptions, the Model Y outsold its nearest rival by more than 50,000 units. Second place went to the newly launched Skoda Elroq with 93,870 registrations, followed by the Tesla Model 3 at 85,393 units. The Model 3 also recorded a 24% year-over-year decline. Renault’s new electric Renault 5 placed fourth with 85,101 registrations.

Other top performers included the Volkswagen ID.4, ID.3, and ID.7, along with the BMW iX1 and Kia EV3, many of which posted triple-digit growth from partial-year launches in 2024.

While the Model Y dominated individual model rankings, Volkswagen overtook Tesla as Europe’s top EV brand in 2025. Volkswagen delivered 274,278 electric cars in the region, a 56% increase compared to 2024. Much of that growth was driven by the Volkswagen ID.7. Tesla, by contrast, sold 236,357 electric vehicles in Europe, representing a 27% year-over-year decline.

JATO Dynamics noted that “Tesla’s small and aging model range faces fierce competition in Europe, both from traditional European automakers and a growing number of Chinese competitors.”

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Despite intensifying competition and brand-level shifts, however. the Model Y’s commanding lead demonstrates that Tesla’s bestselling crossover remains a dominant force in Europe’s fast-evolving EV landscape.

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Starlink gets its latest airline adoptee for stable and reliable internet access

The company said it plans to “rapidly integrate Starlink into its fleet,” and that the first Starlink-equipped aircraft will enter service this Summer.

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Credit: Southwest Airlines

SpaceX’s Starlink, the satellite internet program launched by Elon Musk’s company, has gotten its latest airline adoptee, offering stable and reliable internet to passengers.

Southwest Airlines announced on Wednesday that it would enable Starlink on its aircraft, a new strategy that will expand to more than 300 planes by the end of the year.

The company said it plans to “rapidly integrate Starlink into its fleet,” and that the first Starlink-equipped aircraft will enter service this Summer.

Tony Roach, Executive Vice President, Chief Customer and Brand Officer for the airline, said:

“Free WiFi has been a huge hit with our Rapid Rewards Members, and we know our Customers expect seamless connectivity across all their devices when they travel. Starlink delivers that at-home experience in the air, giving Customers the ability to stream their favorite shows from any platform, watch live sports, download music, play games, work, and connect with loved ones from takeoff to landing.”

Southwest also said that this is just one of the latest upgrades it is making to provide a more well-rounded experience to its aircraft. In addition to Starlink, it is updating cabin designs, offering more legroom, and installing in-seat power to all passengers.

Southwest became one of several airlines to cross over to Starlink, as reviews for the internet provider have raved about reliability and speed. Over the past year, Hawaiian Airlines, United Airlines, Alaska Airlines, airBaltic, Air France, JSX, Emirates, British Airways, and others have all decided to install Starlink on their planes.

This has been a major move away from unpredictable and commonly unreliable WiFi offerings on planes. Starlink has been more reliable and has provided more stable connections for those using their travel time for leisure or business.

Jason Fritch, VP of Starlink Enterprise Sales at SpaceX, said:

“We’re thrilled to deliver a connectivity experience to Southwest Airlines and its Customers that really is similar, if not better, than what you can experience in your own home. Starlink is the future of connected travel, making every journey faster, smoother, and infinitely more enjoyable.”

Starlink recently crossed a massive milestone of over 10 million subscribers.

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