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SpaceX Starship aborts Raptor engine test, briefly catches fire

Starship SN8 is pictured here shortly before liftoff in December 2020. Largely identical, Starship SN11 is working towards its own flight test as early as this week. (SpaceX)

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Update: On March 15th, SpaceX got within milliseconds of Starship serial number 11’s (SN11) first Raptor engine test but suffered an abort just before full ignition, briefly leaving the rocket on fire.

Around 12:26 pm CDT, after an otherwise nominal static fire flow, Starship SN11 momentarily ignited one or two of its three Raptor engines’ preburners, referring to a central component that burns cryogenic liquid propellant into gas that’s ready for combustion. As with all preburner tests, intentional or otherwise, the end result looked a bit like a weak static fire and produced a small but visible amount of flame and thrust. Unlike intentional preburner tests, the static fire abort seemingly ignited something hidden inside Starship SN11’s and appeared to burn for at least another 30-40 seconds.

Starship SN8 intentionally performed a preburner test representative of SN11’s abort back in October 2020.

Raptor has proven itself to be an extremely durable engine, up to and including surviving visible onboard fires during actual Starship flight tests. Nevertheless, depending on the source of SN11’s post-abort fire and what it may or may not have burned or damaged, it’s no surprise that SpaceX ended testing for the day instead of quickly trying again, which it’s done several times prior. If the fire was largely harmless, SpaceX has already distributed notices suggesting a second attempt could happen as early as 6am to 12pm CDT (UTC-5) on Tuesday, March 16th. If more time is needed, SpaceX has the rest of the week to conduct any necessary repairs or swap out SN11’s Raptor engines.

Public documents show that SpaceX has plans to static fire and launch its latest Starship prototype within a two-day period that could begin later today.

SpaceX shipped Starship SN11 from its Boca Chica, Texas rocket factory to test and launch facilities a mile down the road on March 8th, less than five days after Starship SN10 exploded minutes after touchdown. The very next day, SpaceX completed ambient-temperature proof testing, filling Starship with benign nitrogen gas to check for leaks and verify system health. Two days after that, Starship SN11 appeared to complete a several-hour cryogenic proof test – swapping nitrogen gas for its supercool liquid form – without issue.

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Despite the seemingly successful ‘cryo proof,’ something prevented a subsequent static fire test planned on March 12th before any attempt could be made, delaying the next attempt until after the approaching weekend. An agreement between SpaceX, Cameron County, and the state of Texas currently prevents road closures (and thus rocket testing) on weekends falling between Labor Day and Memorial Day, rules meant to preserve some level of public access to Boca Chica Beach.

As a result, unless SpaceX is already ready to launch (it has waivers for three such weekend closures for launch attempts), the company has to wait until Monday even if a minor issue fixable in hours or a day or so scrubs Friday test plans. While inconvenient, it’s worth noting that the existence of that public beach and the strong regulations that protect its public domain is likely one of the only reasons the general public can still get as close as they can to SpaceX’s Boca Chica ‘Starbase’.

For whatever reason, that road closure agreement does still mean that SpaceX will (in theory) be able to test and launch any day of the week from May 31st to September 6th, save for a few holidays, effectively boosting the number of opportunities by 40% for those 14 weeks. Until then, SpaceX is doing everything it can to take full advantage of the five days a week it is allowed to test Starship prototypes. N

Notably, although Starships SN8 and SN9 both hit a few weeks of technical and regulatory snags while preparing for their high-altitude launch attempts, SpaceX has been gradually speeding up that process over time. Starship SN10, the first prototype of its kind to land in one piece, took just 33 days to go from pad arrival to liftoff and spent just 8 days between its first static fire and launch attempts. The same feats took Starship SN8 77 and 50 days, respectively, with SN9 splitting the difference at 43 days from transport to liftoff and 28 days between its first static fire and launch attempts.

Road closure requests, a safety warning for residents, and a Temporary Flight Restriction (TFR) filed with the FAA all suggest that SpaceX’s current plan is to attempt Starship SN11’s first triple-Raptor static fire between 6am and 12pm CDT on Monday, March 15th. If that test goes almost perfectly, SpaceX wants to turn the rocket around for a 10 km (6.2 mi) launch attempt on Tuesday, March 16th – the very next day. Given the past performance of high-altitude Starship prototypes, that target is decidedly ambitious and likely to incur delays, but it still reveals the true scope of SpaceX’s goals even at this early stage of development.

If Starship SN11 does manage to launch within a few days of its first static fire attempt, SpaceX would still crush SN10’s 33-day record by a factor of three. Stay tuned for updates on Monday’s possible Starship static fire and rapid Tuesday turnaround attempt

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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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SpaceX posts Starship booster feat that’s so nutty, it doesn’t even look real

The Super Heavy booster’s feat was so impressive that the whole maneuver almost looked like it was AI-generated.

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Credit: SpaceX/X

SpaceX has shared a video of a remarkable feat achieved by Starship’s Super Heavy booster during its 11th flight test.

The Super Heavy booster’s feat was so impressive that the whole maneuver, which was captured on video, almost looked like it was AI-generated.

Super Heavy’s picture perfect hover

As could be seen in the video shared by SpaceX, Starship’s Super Heavy booster, which is nearly 400 feet tall, smoothly returned to Earth and hovered above the Gulf of America for a few seconds before it went for its soft water landing. The booster’s picture-perfect maneuver before splashing down all but capped a near-flawless mission for Starship, which is about to enter its V3 era with Flight 12.

The booster’s balance and stability were so perfect that some users on X joked that the whole thing looked AI-generated. Considering the size of Super Heavy, as well as the fact that the booster was returning from space, the hovering display all but showed that SpaceX is dead serious about keeping its dominant lead in the spaceflight sector.

Starship V2’s curtain call

As noted in a Space.com report, Flight Test 11 achieved every major goal SpaceX had set for the mission, including deploying Starlink mass simulators, relighting Raptor engines in space, and executing a stable reentry for both the Starship Upper Stage and the Super Heavy booster. The feat also marked the second time a Super Heavy booster has been reflown, a milestone in SpaceX’s quest to make the entire Starship system fully reusable.

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Starship’s V2 vehicle will now give way to the upgraded Starship V3, which is designed for faster turnaround and higher payload capacity. The Starship program is expected to pursue even more aggressive targets in the coming months as well, with Elon Musk stating on social media platform X that SpaceX will attempt a tower catch for Starship Upper Stage as early as spring 2026.

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After moving Tesla to Texas, Elon Musk is back in the Bay Area with Neuralink expansion

The news marks a noticeable step in Musk’s expanding presence in the Bay Area, despite the move of his biggest companies, Tesla and SpaceX, to Texas.

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Credit: Steve Jurvetson/Twitter

Recent reports have indicated that Elon Musk’s brain-implant startup, Neuralink, has leased a five-story, 144,000-square-foot building in South San Francisco. At the same time, Musk’s artificial intelligence startup xAI is reportedly also looking around for a Bay Area office. 

The news marks a noticeable step in Musk’s expanding presence in the Bay Area, despite the move of his biggest companies, Tesla and SpaceX, to Texas.

Neuralink’s Bay Area expansion

As noted in a report from the San Francisco Business Times, the property that Neuralink has leased is located at 499 Forbes Boulevard, and it was built by Aralon Properties before it was leased to cancer test developer InterVenn Biosciences. The site, however, had remained vacant since 2023 after InterVenn canceled its 10-year lease.

xAI, Musk’s artificial intelligence startup, is reportedly scouting for an even larger Bay Area office as well, as noted in a report from the San Francisco Chronicle. Combined, the two ventures could secure nearly 400,000 square feet of local workspace, a move seen as a symbolic return of sorts for Musk-led innovation to Silicon Valley.

Neuralink’s momentum

Founded in 2016, Neuralink develops brain-computer interfaces intended to help paralyzed patients control digital devices through thought. The company received U.S. regulatory approval in 2023 to begin human trials, with its first patient, quadriplegic Noland Arbaugh, making headlines for his stunning ability to control a computer cursor and play games using only his mind. Since receiving his implant, Arbaugh has stated that he now browses the web, plays video games like Mario Kart, studies neuroscience, and operates his smart home without lifting a finger. 

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Nauralink is only just getting started, with Elon Musk noting on X that the company is busy preparing its next product, Blindsight, for human trials. As per Musk, Neuralink is “aiming to restore (limited) sight to the completely blind next year,” an aggressive target for a potentially life-changing device.

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Tesla Cybercab tests seem to be ramping up again

Elon Musk has stated that he expects the company to achieve a run rate of 2 million Cybercabs annually.

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Credit: @serobinsonjr/X

Tesla seems to be ramping the tests of its autonomous two-seater, the Cybercab, once more. This was hinted at in recent drone footage from both the Fremont Factory and Gigafactory Texas.

The fresh sightings of the Cybercab in the Fremont Factory and Giga Texas have renewed conversations about the vehicle potentially being built with manual controls today. 

Fresh Cybercab tests

As noted by longtime drone operator Joe Tegtmeyer on social media platform X, he recently spotted a Cybercab driving on Giga Texas’ South River Road to the West side. Interestingly enough, the longtime Giga Texas watcher noted that this was the first Cybercab that he had seen conducting road tests in a while.

Over in the Fremont Factory, another Cybercab was spotted driving around the facility’s testing area. Similar to the Cybercab in the Giga Texas sighting, the vehicle that was spotted in the Fremont Factory seemed to be manually driven, at least based on the way it was being steered. This behavior has incited speculations among Tesla watchers that current Cybercab test units have manual controls, unlike their production version, which would have no steering wheel or pedals. 

Cybercab production preparation

The sightings of Cybercabs around the Fremont Factory and Giga Texas bode well for the vehicle’s development and impending production. It does, if any, complement reports that Tesla has been busy setting up production equipment for Giga Texas’ Cybercab production line. At the same time, drone footage around the Giga Texas complex has also revealed that Tesla is stockpiling some Cybercab castings, a likely sign that initial test production of the vehicle might soon begin.

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The Cybercab is expected to be Tesla’s highest volume vehicle, with CEO Elon Musk stating that he expects the company to achieve a run rate of 2 million Cybercabs annually. He also mentioned that the Cybercab will be easy to produce thanks to its Unboxed manufacturing process, so much so that its production would resemble a high-speed consumer electronics line instead of an automotive assembly line.

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