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SpaceX just blew up a Starship tank on purpose and Elon Musk says the results are in

That's probably not gonna buff out. (NASASpaceflight - bocachicagal)

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5 years ago

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Before dawn on January 10th, SpaceX technicians and engineers intentionally blew up a miniature Starship tank in order to test recently-upgraded manufacturing and assembly methods, likely to be used to build the first Starships bound for flight tests and orbit.

SpaceX CEO Elon Musk quickly weighed in on Twitter later the same day, revealing some crucial details about the Starship tank test and effectively confirming that it was a success. While somewhat unintuitive, this is the second time SpaceX has intentionally destroyed largely completed Starship hardware in order to determine the limits of the company’s current methods of production and assembly.

Most notably, on November 20th, SpaceX is believed to have intentionally overpressurized the Starship Mk1 prototype in a very similar – albeit larger-scale – test, destroying the vehicle and sending its top tank dome flying hundreds of feet into the air. It’s generally believed that SpaceX (or perhaps even just Musk) decided that Starship Mk1 was not fit to fly, leading the company to switch gears and deem the prototype a “manufacturing pathfinder” rather than the first Starship to fly – which Musk had explicitly stated just a few months prior.

Instead, Starship Mk1 suffered irreparable damage during its pressurization test and was rapidly scrapped in the weeks following, although several segments were thankfully salvaged – perhaps for use on future prototypes. Along those lines, it can arguably be said that the results from the mini Starship tank’s Jan. 10 pop test have paved the way for SpaceX to build the first truly flightworthy Starship prototypes – potentially all the way up to the first spaceworthy vehicles.

Hours after the test, Musk revealed that the Starship test tank failed almost exactly where and how SpaceX expected it would, bursting when the weld joining the upper dome and tank wall failed. Critically, the tank reached a maximum sustained pressure of 7.1 bar (103 psi), some 18% over the operating pressure (6 bar/87 psi) Musk says Starship prototypes will need to be declared fully capable of orbital test flights. In other words, given the tank’s size, it survived an incredible ~20,000 metric tons (45 million lbf) of force spread out over its surface area, equivalent to about 20% the weight of an entire US Navy aircraft carrier.

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Musk also revealed that SpaceX will require Starships to survive a minimum of 140% of that operating pressure before the company will allow the spacecraft to launch humans.

Some have less than generously taken to smugly noting that several modern spaceflight and engineering standards require that launch vehicle tankage be rated to survive no less than 125% of their operating pressure, while this test tank would be rated for less than 118% under identical conditions. However, this ignores several significant points of interest. First and foremost, the Starship test tank intentionally destroyed on January 10th was assembled from almost nothing – going from first weld to a completed pressurization test – in less than three weeks (20 days).

Second, all visible welding and assembly work was performed outside in the South Texas elements with only a minor degree of protection from the coastal winds and environment. Although some obvious tweaks were made to the specific methods used to assembly the prototype tank, it also appears that most of the welding was done by hand. For the most part, in other words, the methods used to build this improved test article were largely unchanged compared to Starship Mk1, which is believed to have failed around 3-5 bar (40-75 psi).

Additionally, it appears that almost all aspects of this test tank have smaller structural margins, meaning that the tank walls and domes are likely using steel stock that is substantially thinner than what was used on Starship Mk1. Nevertheless, thanks to the addition of continuous (single-weld) steel rings, a tweaked dome layout, and slightly refined welding, this test tank has performed anywhere from 20% to 200+% better than Starship Mk1 – again, all while coming together from scratch in a period of less than three weeks.

SpaceX technicians finished welding the tanks two halves together less than 24 hours before the tank was successfully pressure-tested. (NASASpaceflight – bocachicagal)

As Musk notes, with relatively minor improvements to welding conditions and the manufacturing precision of Starship rings and domes, SpaceX can likely ensure that Starships (and thus Super Heavy boosters) will be able to survive pressures greater than 8.5 bar (125 psi), thus guaranteeing a safety margin of at least 40%. Even a minor improvement of ~6% would give vehicles a safety margin of 125%, enough – in the eyes of engineering standards committees – to reasonably certify Starships for orbital test flights.

Technicians worked through the night and into the predawn morning to prepare the mini Starship tank for an intentional test to failure. (NASASpaceflight – bocachicagal)
Although several hours after a scheduled roadblock, SpaceX ultimately successfully completed the pressure test around 5 am CST (11:00 UTC), January 10th. (NASASpaceflight – bocachicagal)

All things considered, it’s safe to assume that SpaceX is going to begin building and assembling Starship SN01 (formerly Mk3) hardware almost immediately. Given that this test tank took just 20 days to assemble, it’s safe to say that the upgraded prototype’s tank section could be completed in just a handful of weeks. Stay tuned for progress reports.

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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 Full Self-Driving displays impressive collision avoidance with semi

A Tesla on Full Self-Driving helped a driver avoid a collision with a semi by anticipating the truck’s movement.

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2 hours ago

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May 13, 2025

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Credit: @AIDRIVR

Tesla Full Self-Driving has displayed incredible anticipatory measures in the past to avoid collisions from both oncoming cars and vehicles approaching from behind.

In a recent demonstration, the semi-autonomous driving functionality averted disaster as it confused the driver by taking a precautionary measure as an oncoming semi-truck started to drift into its lane. By the end of the occurrence, the driver knew why FSD did what it had done.

Tesla’s FSD Supervised prevented this family from hitting a deer

Full Self-Driving avoids disaster

In a video from X account @AIDRIVR, Full Self-Driving navigated as normal when it started to take an oncoming sharp left-hand curve a tad higher than usual.

Normally, the vehicle would stay in the lane, but this time, it started to drift toward the shoulder after what appeared to be a small reduction in speed.

AIDRIVR said he “wondered why FSD was taking this corner so wide,” but the answer quickly approached him from the other side of the road, proving once again that Tesla’s suite is a few steps ahead of even human drivers at times:

A semi-truck in the oncoming lane started to drift over the center line through this sharp turn.

With these large vehicles, these curves can sometimes prove to be better handled by taking the turn a tad wider, which means the large commercial vehicle will start to approach the middle yellow lines.

However, this is much to the chagrin of other drivers and can be a major inconvenience and safety hazard.

Full Self-Driving continues to show instances where it is predicting and anticipating the behaviors and actions of other drivers, keeping occupants in the Tesla safe by using certain tactics to avoid collisions.

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Elon Musk

Tesla CEO Elon Musk confirms Robotaxi will come to Saudi Arabia

Tesla Robotaxi will be in Saudi Arabia one day, Elon Musk confirms.

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4 hours ago

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May 13, 2025

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Tesla CEO Elon Musk confirmed during the Saudi-U.S. Investment Forum on Tuesday that the company’s Robotaxi platform would eventually land in the Kingdom of Saudi Arabia, essentially confirming the intention to grow a driverless fleet of vehicles outside of the United States.

This is the first time Musk has specifically confirmed Tesla’s intention to expand into Saudi Arabia, although based on the company’s plans, a global expansion is more expected than a confined Robotaxi platform that is limited to only the West.

Musk confirmed during the Investment Forum, where the U.S. agreed with the Saudis to a $600 billion investment pledge, that Robotaxi would eventually expand to the country. The CEO did not mention a specific timeframe, but Tesla is set to launch the Robotaxi platform in Austin, Texas, in June.

“Really, you can think of cars, or future cars, as being robots on four wheels. I think it will be very exciting to have autonomous vehicles here in the Kingdom, if you’re amenable.”

As Tesla’s Full Self-Driving suite is still supervised, it is expanding to other parts of the globe. Earlier this year, it made its way to China for the first time ever, with many giving rave reviews of the driver assistance platform.

Tesla plans to expand to Europe later this year, but the company is still awaiting regulatory approval from EU agencies, something that will likely take some time to complete.

The big takeaway is that the Robotaxi platform is not confined to a single model, like the Cybercab. Instead, Robotaxi could be any Tesla vehicle, as long as it is capable of unsupervised Full Self-Driving. This is something that will require Tesla to work with local authorities to first launch a Supervised version of the suite, which could then expand to the unsupervised FSD platform, enabling a Robotaxi network in the country.

Nevertheless, Tesla’s relationship with the Middle East seems to be good. The company recently launched the Cybertruck in Saudi Arabia, enabling customer orders just last month.

Tesla confirms Cybertruck will make its way out of North America this year

Additionally, Musk’s Starlink was recently given approval for both maritime and aviation use cases, expanding the relationship between the country and the CEO. This was also confirmed during the Investment Forum today.

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Tesla is building Cortex 2.0 supercomputer facility in Giga Texas

The site was listed as the Central Campus Support facility, but recently, the filings have been updated as Cortex 2.0.

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6 hours ago

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May 13, 2025

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Credit: @JoeTegtmeyer/X

Tesla may already have a supercomputer cluster in the Giga Texas complex, but it seems like the electric vehicle maker is not done with its supercomputer plans just yet. Based on images taken of the Giga Texas complex recently, it appears that work is now underway to construct a new facility for Cortex 2.0, a companion to the site’s existing Cortex supercluster.

New Giga Texas Facilities

As per longtime Tesla Gigafactory Texas watcher Joe Tegtmeyer, Tesla has been constructing a facility on the North side of the complex for a few months now. Initially, the site was listed as the Central Campus Support facility, but recently, the filings have been updated as Cortex 2.0. So far, work is underway for the Cortex 2.0 building shell, though permits have already been filed for other parts of the upcoming facility.

The speed of the buildout for the Cortex 2.0 facility is rapid, with the drone operator estimating that the location may be operational as early as late this year. It would also not be surprising if Tesla ends up ramping its activities at Gigafactory Texas’ Cortex 2.0 supercomputer cluster sometime next year.

FSD Training and Beyond

Tesla’s heavy investments in its supercomputer clusters are expected to help the company develop and refine its self-driving system, which is currently deployed in non-autonomous form as Full Self-Driving (FSD) Supervised. Tesla is expected to launch a robotaxi service in Austin in a few weeks, though these vehicles are expected to use FSD Unsupervised, which would be fully autonomous.

Apart from FSD, Tesla’s Optimus program will likely require a substantial amount of computing power as well. Elon Musk has stated that Tesla should be able to build its first “legion” of Optimus robots this year, with production ramping next year. Considering these ambitious timelines, perhaps Giga Texas’ Cortex 2.0 facility would be fully busy as soon as it becomes operational.

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Check out a recent drone flyover of the Giga Texas complex in the video below.

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