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SpaceX’s first orbital Starship prototype prepares for proof tests

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4 years ago

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Several days after SpaceX’s first orbital-class Starship prototype took a second trip to a nearby launch site, the rocket is on its way to one of two suborbital launch mounts.

Once installed on the steel structure, Starship prototype 20 (S20) will finally be ready for – at minimum – two crucial tests: a cryogenic proof and static fire. According to highway closures filed by SpaceX late last week, the first of those tests could apparently begin as early as Thursday, August 19th, potentially setting Starship S20 up to attempt at least one major milestone next week.

On August 13th, SpaceX rolled Starship S20 back to the launch site a week after the rocket was sent to the pad to be briefly stacked on top of a Super Heavy booster – an event that appears to have been something like 50% photo opportunity, 50% test objective. Neither the booster or ship were fully complete at the time and both ultimately required at least another week or two of outfitting and plumbing to be ready for ground testing – let alone flight. Aspirationally, the same pair – Ship 20 and Booster 4 – could be the first to attempt a true orbital Starship launch sometime later this year.

Since its second rollout, Ship 20 has more or less stayed in one place as workers continuously swarmed about the rocket on boom and scissor lifts. Over the last four days, not much has visually changed save for the installation of a handful of heat shield tiles, but the focus clearly centered around the Starship’s ‘raceway’ – a clutch of plumbing and wiring that runs most of the length of the vehicle’s back. Virtually all rockets have them and Starship is no different with a raceway packed with avionics wire runs, plumbing for propellant loading, and smaller lines for pressurization and hydraulics.

While it’s not entirely clear what specific work has been done over the last few days or why it wasn’t done back at the build site, where CEO Elon Musk himself has said such tasks are more easily done, it’s clear that Starship S20 does have a more refined raceway than any ship before it. In recent days, SpaceX has also begun to install structural elements that strongly imply that S20 will be the first Starship to receive a raceway aerocover – not unlike those on Falcon boosters – to protect its external wiring and plumbing in flight.

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Starship SN15’s raceway was cleaner than those on ships before it but still not nearly as neatly and tightly packed as Ship 20’s. (NASASpaceflight – bocachicagal)

Regardless, once Starship S20 is installed on one of SpaceX’s two suborbital launch mounts, the vehicle will most likely be prepared for a routine cryogenic proof test. To pass, Starship will need to survive significant thermal and mechanical stress as its tanks are filled with supercool liquid nitrogen and pressurized to at least 6 bar (~90 psi). At this point, a Starship prototype hasn’t failed a cryo proof in more than a year, so the test should be fairly routine.

Curiously, after spending weeks modifying Mount B with a series of hydraulic rams meant to simulate the thrust of Ship 20’s six Raptor engines during its cryo proof(s), SpaceX removed all of that extra hardware just prior to the Starship’s second rollout and now-imminent installation on said mount. Regardless of why, that decision likely means that Starship S20 will move directly to static fire testing once it passes cryo proofing. Given that Ship 20 appears to be on track to be the first Starship prototype of any kind to fire more than three Raptors at a time, that static fire campaign will likely be somewhat cautious, possibly beginning with just 1-3 engines and then moving to four, five, or straight to six.

SpaceX could also throw caution to the wind (not implausible as evidenced by the removal of Pad B’s unused thrust rams) and install and attempt to fire all six Raptors immediately after Ship 20 completes a cryo proof. Based on road closures filed by SpaceX, that testing could begin as early as 5pm to 11pm CDT on Thursday, August 19th. A backup window is also scheduled from 6am to 12pm CDT on August 20th.

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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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GM CEO Mary Barra says she told Biden to give Tesla and Musk EV credit

“He was crediting me, and I said, ‘Actually, I think a lot of that credit goes to Elon and Tesla…You know me, Andrew. I don’t want to take credit for things.”

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5 hours ago

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December 3, 2025

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General Motors CEO Mary Barra said in a new interview on Wednesday that she told President Joe Biden to credit Tesla and its CEO, Elon Musk, for the widespread electric vehicle transition.

She said she told Biden this after the former President credited her and GM for leading EV efforts in the United States.

During an interview at the New York Times Dealbook Summit with Andrew Ross Sorkin, Barra said she told Biden that crediting her was essentially a mistake, and that Musk and Tesla should have been explicitly mentioned (via Business Insider):

“He was crediting me, and I said, ‘Actually, I think a lot of that credit goes to Elon and Tesla…You know me, Andrew. I don’t want to take credit for things.”

Back in 2021, President Biden visited GM’s “Factory Zero” plant in Detroit, which was the centerpiece of the company’s massive transition to EVs. The former President went on to discuss the EV industry, and claimed that GM and Barra were the true leaders who caused the change:

“In the auto industry, Detroit is leading the world in electric vehicles. You know how critical it is? Mary, I remember talking to you way back in January about the need for America to lead in electric vehicles. I can remember your dramatic announcement that by 2035, GM would be 100% electric. You changed the whole story, Mary. You did, Mary. You electrified the entire automotive industry. I’m serious. You led, and it matters.”

People were baffled by the President’s decision to highlight GM and Barra, and not Tesla and Musk, who truly started the transition to EVs. GM, Ford, and many other companies only followed in the footsteps of Tesla after it started to take market share from them.

Elon Musk and Tesla try to save legacy automakers from Déjà vu

Musk would eventually go on to talk about Biden’s words later on:

“They have so much power over the White House that they can exclude Tesla from an EV Summit. And, in case the first thing, in case that wasn’t enough, then you have President Biden with Mary Barra at a subsequent event, congratulating Mary for having led the EV revolution.”

In Q4 2021, which was shortly after Biden’s comments, Tesla delivered 300,000 EVs. GM delivered just 26.

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Tesla Full Self-Driving shows confident navigation in heavy snow

So far, from what we’ve seen, snow has not been a huge issue for the most recent Full Self-Driving release. It seems to be acting confidently and handling even snow-covered roads with relative ease.

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8 hours ago

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December 3, 2025

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Credit: Grok

Tesla Full Self-Driving is getting its first taste of Winter weather for late 2025, as snow is starting to fall all across the United States.

The suite has been vastly improved after Tesla released v14 to many owners with capable hardware, and driving performance, along with overall behavior, has really been something to admire. This is by far the best version of FSD Tesla has ever released, and although there are a handful of regressions with each subsequent release, they are usually cleared up within a week or two.

Tesla is releasing a modified version of FSD v14 for Hardware 3 owners: here’s when

However, adverse weather conditions are something that Tesla will have to confront, as heavy rain, snow, and other interesting situations are bound to occur. In order for the vehicles to be fully autonomous, they will have to go through these scenarios safely and accurately.

One big issue I’ve had, especially in heavy rain, is that the camera vision might be obstructed, which will display messages that certain features’ performance might be degraded.

So far, from what we’ve seen, snow has not been a huge issue for the most recent Full Self-Driving release. It seems to be acting confidently and handling even snow-covered roads with relative ease:

Moving into the winter months, it will be very interesting to see how FSD handles even more concerning conditions, especially with black ice, freezing rain and snow mix, and other things that happen during colder conditions.

We are excited to test it ourselves, but I am waiting for heavy snowfall to make it to Pennsylvania so I can truly push it to the limit.

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Tesla hosts Rome Mayor for first Italian FSD Supervised road demo

The event marked the first time an Italian mayor tested the advanced driver-assistance system in person in Rome’s urban streets.

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13 hours ago

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December 3, 2025

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Credit: @andst7/X

Tesla definitely seems to be actively engaging European officials on FSD’s capabilities, with the company hosting Rome Mayor Roberto Gualtieri and Mobility Assessor Eugenio Patanè for a hands-on road demonstration. 

The event marked the first time an Italian mayor tested the advanced driver-assistance system in person in Rome’s urban streets. This comes amid Tesla’s push for FSD’s EU regulatory approvals in the coming year.

Rome officials experience FSD Supervised

Tesla conducted the demo using a Model 3 equipped with Full Self-Driving (Supervised), tackling typical Roman traffic including complex intersections, roundabouts, pedestrian crossings and mixed users like cars, bikes and scooters.

The system showcased AI-based assisted driving, prioritizing safety while maintaining flow. FSD also handled overtakes and lane decisions, though with constant driver supervision.

Investor Andrea Stroppa detailed the event on X, noting the system’s potential to reduce severe collision risks by up to seven times compared to traditional driving, based on Tesla’s data from billions of global fleet miles. The session highlighted FSD’s role as an assistance tool in its Supervised form, not a replacement, with the driver fully responsible at all times.

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Path to European rollout

Tesla has logged over 1 million kilometers of testing across 17 European countries, including Italy, to refine FSD for local conditions. The fact that Rome officials personally tested FSD Supervised bodes well for the program’s approval, as it suggests that key individuals are closely watching Tesla’s efforts and innovations.

Assessor Patanè also highlighted the administration’s interest in technologies that boost road safety and urban travel quality, viewing them as aids for both private and public transport while respecting rules.

Replies on X urged involving Italy’s Transport Ministry to speed approvals, with one user noting, “Great idea to involve the mayor! It would be necessary to involve components of the Ministry of Transport and the government as soon as possible: it’s they who can accelerate the approval of FSD in Italy.”

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