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SpaceX Starship prototype bears down on first Raptor engine tests

SpaceX technicians inspect Starship SN5 shortly after installing the rocket on the launch pad. (NASASpaceflight - bocachicagal)

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SpaceX’s fifth full-scale Starship prototype is fast approaching its first Raptor static fire tests after the company recently delivered one of the newest engines to the launch site.

Known as Starship SN5, the ship is the fifth SpaceX has built since full-scale prototype development began in early 2019, as well as the fourth full-scale ship the company has completed since it began producing upgraded hardware in January 2020. SN5 rolled from SpaceX’s Boca Chica, Texas rocket factory to nearby test and launch facilities on June 24th, less than a month after Starship SN4 was destroyed by operator error minutes after completing its fourth Raptor static fire in four weeks.

While Starship SN5 was already more or less complete, SN4’s explosive demise damaged the launch mount (used to secure and fuel prototypes) beyond repair, forcing SpaceX to rapidly build and outfit a replacement. SpaceX finished that replacement mount around June 20th, installed SN5 on it a few days later, and then spent about a week finalizing and inspecting both components.

After barely a month of downtime, Starship SN5 kicked off its first gauntlet of tests late on June 30th, carrying on into the early morning of July 1st. As usual, SpaceX began with an ambient-temperature pressure test, filling Starship’s tanks with neutral nitrogen gas to check for leaks. This time around, SN5 must have been put together with exceptional care, as the company was able to immediately proceed into the ship’s first cryogenic proof test just a few hours later.

CEO Elon Musk has yet to offer any confirmation but the implication is that SN5 performed beautifully during its first liquid nitrogen proof test. Notably, based on NASASpaceflight.com’s excellent unofficial coverage, SN5’s cryo proof was uniquely ambitious. It’s unclear what if the test infrastructure, SN5, general confidence in the vehicle, or some combination of the above components were upgraded, but SpaceX appeared to load Starship SN5 with liquid nitrogen incredibly quickly, taking just 20-30 minutes to fully fuel the rocket. Given that all of that liquid nitrogen (some 1000+ metric tons or ~3.2 million gallons) is being loaded through a single “quick disconnect” panel, it’s no mean feat and far outweighs SpaceX’s already speedy Falcon 9 and Heavy propellant loading.

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SpaceX is famously the only current launch vehicle operator known to “sub-cool” its rockets’ propellant, effectively squeezing a performance boost of 5-10% out of the same rocket hardware by making said propellant colder – and thus denser. That performance increase comes with tradeoffs, though, adding significantly tighter operational constraints, lowering delay tolerances, and necessitating an extremely quick propellant load. Sub-cooled liquid oxygen and methane has always been part of SpaceX’s plans for Starship, so fast-load tests were inevitable, but it’s a great sign that the company is starting to seriously think about capabilities that will be necessary for efficient orbital launches.

Meanwhile, labeled “27”, the engine – logically assumed to be Raptor SN27 – SpaceX has just installed on Starship SN5 is also of interest. On top of Musk’s recent confirmation that SpaceX is already building Raptor SN30 (probably SN31 or SN32, now), SN27’s assignment to Starship SN5 confirms that the company has managed to complete (and test) at least one next-generation engines every other week since the first full-scale engine shipped to McGregor, Texas in February 2019.

Starship SN4 was tested with Raptor SN18 and SN20 just 1-2 months ago. (SPadre)
SN5 will kick off static fire testing with Raptor SN27. (NASASpaceflight – bocachicagal)

For a brand new engine as complex as Raptor, that’s an impressive production milestone. Per Musk, the end-goal is to produce at least one Raptor per day in the near term – a necessity given that each Starship and Super Heavy booster pair will require at least 37 engines. To feasibly build a fleet of tens – let alone hundreds or thousands – of Starships and boosters, one engine per day is arguably the bare minimum required just for early orbital launch attempts and initial operations.

According to published schedules, Starship SN5’s first live wet dress rehearsal (WDR) and static fire tests could happen as early July 8th, with backups on the 9th and 10th. Coincidentally, SpaceX’s next orbital Falcon 9 launch is also expected on the 8th, meaning that both Starship and Falcon 9 could fire up more or less simultaneously.

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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 FSD upcoming Australia release seemingly teased bv media

The videos showed FSD navigating lane changes, slowing for traffic, and handling curves without driver input.

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Credit: Tesla AI/X

New videos from Australia have fueled speculations that Tesla’s Full Self-Driving (FSD) will be rolling out in the country soon. 

The videos, which were shared widely on social media, showed Teslas navigating lane changes, slowing for traffic, and handling curves without driver input, but still with active supervision.

New FSD footage

One video, posted by lifestyle outlet Man of Many and narrated by journalist Ben McKimm, highlighted how quickly the system responded to real-world conditions. McKimm seemed quite impressed with FSD’s performance, stating that the vehicle performs maneuvers much like a human driver. 

Another video, which featured reporter Danielle Collin, featured a Tesla operating on public roads using its FSD (Supervised) system. Similar to McKimm, Collin seemed very impressed with the capabilities of FSD, as the vehicle was reacting to things like stop signs on its own. 

No regulatory barriers

This isn’t the first time the software has been seen on Australian roads. Earlier this year, Tesla released a clip of a Model 3 driving through Melbourne’s central business district with no visible driver input. A second video later surfaced from Sydney, reinforcing expectations that Australia could be among the first right-hand-drive markets to receive access.

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According to Tesla’s Australian website, FSD (Supervised) uses 360-degree camera visibility to manage blind spots, execute lane changes, and maintain awareness of surrounding vehicles, cyclists, and motorcycles. While Tesla notes that constant human oversight is still required for now, FSD is designed to handle city intersections, multi-lane highways, and traffic signals.

In an earlier statement to news.com.au, Tesla country director Thom Drew previously confirmed there were “no blockers in Australia” for a supervised release of FSD, similar to North America. “It’s something our business is working on releasing,” Drew said, though he did not provide a timeline.

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Tesla Careers website is hinting at preparations for a monster Q3 and Q4

Tesla has gone live with several dozen openings for Delivery Vehicle Prep specialists on its Careers website.

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Credit: Tesla

Tesla seems to be preparing for a monster Q3 and Q4 2025. This was, at least, hinted at by some job openings that have been observed by industry watchers in Tesla’s Careers website.

Job listing trends

As observed by avid Tesla watchers on social media, the electric vehicle maker has gone live with several dozen openings for Delivery Vehicle Prep specialists on its Careers website. In North America alone, about 69 job openings for the position have been listed by the company. 

The role of a Delivery Vehicle Prep specialist is notable, as they help with vehicle preparation, vehicle inspections, effective lot management, and active collaboration with your team to enhance pre-delivery processes. Considering that the position ensures that cars are handed over to customers in the best way possible, it seems futile for Tesla to ramp up its hiring for the post if it is not expecting large volumes of deliveries in the coming months.

Increasing demand

Tesla’s vehicle sales in the first and second quarters of the year have been quite throttled due to a variety of factors, from the changeover to the Model Y in the Fremont Factory, Gigafactory Shanghai, Gigafactory Berlin, and Gigafactory Texas, to the rise of anti-Tesla sentiment due to CEO Elon Musk’s political activities earlier this year. These factors are no longer affecting Tesla this Q3, and the company tends to deliver a notable amount of its vehicles in the fourth quarter. 

With this in mind, it would appear that Tesla is indeed preparing for a massive uptick in its vehicle deliveries for the remaining months of the year. The company, after all, would likely be quite busy, especially with the upcoming introduction of the new Model 3 Performance and the rollout of Tesla China’s recently unveiled Model Y L. Expectations are also high that Tesla is preparing to roll out more affordable variants of its vehicles later this year.

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Tesla Cybertruck officially launches in Korea

New orders for the Cybertruck will start on September 5, 2025. 

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Credit: Tesla Cybertruck/X

The Tesla Cybertruck is being launched in South Korea. The arrival of the all-electric pickup truck in the country was announced by the electric vehicle maker in a blog post and on social media.

Tesla Cybertruck launch

As per Tesla Korea, those who have reserved the Cybertruck could log into their Tesla account to confirm their order. Customers could confirm their orders from August 29, 2025 to September 4, 2025. New orders for the Cybertruck will start on September 5, 2025. 

Tesla Korea noted that if existing reservation holders do not confirm their orders within August 29 to September 5, their existing reservation date will not be recognized. A downpayment of the Cybertruck in South Korea would be 20 million won. ($14,300).

Potential demand

As noted in a report from the Chosun Biz, the Cybertruck has recorded a high pre-order rate in South Korea since the vehicle was initially unveiled in late 2019. Two variants of the Cybertruck will be made available in South Korea, the Cybertruck AWD and the Cyberbeast. The vehicles will be sold at 145 million won ($104,000) and 160 million won ($114,500), respectively.

The Cybertruck is arguably Tesla’s most advanced vehicle today, thanks to its use of systems like steer-by-wire, which allows even large vehicles like the all-electric pickup truck to be capable of being driven without much issue, even in tight spaces. The vehicle is also built with stainless steel, making it one of the toughest pickup trucks in the market.

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