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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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LIVE BLOG: Tesla (TSLA) Q2 2025 earnings call updates

The following are live updates from Tesla’s Q2 2025 earnings call.

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Credit: Tesla

Tesla’s (NASDAQ:TSLA) earnings call comes on the heels of the company’s Q2 2025 update letter, which was released after the closing bell on July 23, 2025.

Tesla’s Q1 2025 Results: 

Total Revenues: $22.5 billion

Total automotive revenues: $16.7 billion

Total GAAP gross margin: 17.2%

Gross Profit: $3.88 billion

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EPS non-GAAP: $0.40 per share

The following are live updates from Tesla’s Q2 2025 earnings call. I will be updating this article in real time, so please keep refreshing the page to view the latest updates on this story.

16:22 CT – Good day to everyone, and welcome to another Tesla earnings call live blog. Tesla had a pretty big quarter, and while the company’s vehicle deliveries are still down year-over-year, the Robotaxi pilot has been launched in Austin.

Now to see if this earnings call starts on time. Interestingly enough, the EV maker has not posted a link to its Q2 2025 earnings call livestream on its official @Tesla X account yet.

16:26 CT – The earnings call’s livestream on YouTube, however, is up:

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16:28 CT – I wonder which Elon we will get on today’s earnings call? Will be get super locked-in Elon, serious Elon, or lighthearted Elon? Whichever Elon we get, TSLA stock will probably show some reaction in after-hours trading.

16:30 CT – Travis Axelrod of Tesla’s Investor Relations team opens the call. He states that Tesla CEO Elon Musk and other executives are present. And, here’s Elon’s opening remarks.

16:33 CT – Elon opens with the launch of Tesla’s Robotaxi service in Austin, which has gotten “bigger and longer” over the past few weeks. He stated that the service area for Robotaxi services in Austin will get even bigger and longer soon. He mentions the Robotaxi service’s expansion to the Bay Area, Arizona, and Florida in the coming months.

“I think we’ll have Robotaxi in half the population of the US by the end of the year?” Musk said, highlighting that this is subject to regulatory approval. He added that Tesla is expanding its Robotaxi service cautiously.

16:35 CT – Elon noted that the Model Y became the best-selling car in several countries in n Türkiye, Netherlands, Switzerland and Austria in June. This was despite the Model Y selling in these countries without its killer feature–FSD. Despite the regulatory challenges, Elon noted that Tesla will get these approvals, and he is hoping that some areas in Europe should experience FSD in the coming months. “It really is the single biggest demand driver,” Musk said.

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16:37 CT – Elon also mentioned the launch of the Tesla Diner. “This is a very special diner,” Musk said, stating that the facility is a “shining beacon of hope.” He joked that it is rare that a diner makes the news, but the newly launched restaurant is quite something.

On the other hand, Elon noted that Tesla is making significant improvements to its FSD software, and that the company could probably 10X the parameter count from what users are currently experiencing.

16:43 CT – The CEO also highlghted the growth of Tesla Energy, which he noted was a “really big deal.” As for Optimus, Musk stated that the humanoid robot is in its current second generation. Its third generation will be “exquisite,” the CEO noted.

“Tesla is by far the best in the world in real-world AI,” Musk said. He threw some shade at Waymo as well, stating that while Google is good at AI, the tech giant is not as good in real-world AI applications. All those years producing and designing cars matter.

“Tesla has the highest intelligence density in AI so far,” Musk said. “Intelligence density will be a very big deal in the future.”

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16:46 CT – Musk stated that Tesla will probably see prototypes of Optimus Version 3 this year, and scale production next year. Tesla will be ramping these initiatives as fast as possible, considering the company’s aspirations to produce millions of Optimus robots per year. Musk believes that a rate of 1 million Optimus robots per year is feasible within five years.

“We’re not always on time, but we get it done,” Musk said, referencing the company’s tendency to make the impossible feel late. He also reiterated the idea that Tesla can be the omst valuable company in the world if it executes very well.

16:50 CT – Tesla CFO Vaibhav Taneja mentioned the company’s milestone of delivering a car autonomously to a customer for the first time in Q2. He also mentioned the effects of the Trump administration’s regulatory changes for electric vehicles.

He mentioned that Tesla is seeing more test drives, and the company did start the production of more affordable cars in the first half of the year, with volume production planned for the second half of the year.

16:55 CT – Investor questions begin with an inquiry about Tesla Robotaxis. Tesla noted that it expects to 10X its current operation in the coming months. The Bay Area is next, and Tesla is looking to expeedite the service’s approval.

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As for technical and regulatory hurdles for Unsupervised FSD, Elon Musk stated that he believes the feature should be available in a number of cities by the end of the year. Tesla, however, is being extremely paranoid about safety, so Unsupervised FSD’s rollout will be very, very cautious. Also, Tesla vehicles from Fremont could deliver themselves to customers autonomously by the end of the year.

16:58 CT – A question about Optimus was asked. Elon noted that Optimus V3 is the right design for the humanoid robot, since it has all the degrees of freedom necessary to ensure that it can do tasks very well. He also set expectations on Optimus’ ramp.

“If we are not making 100,000 OPtimus robots per month in 60 months, I will be shocked,” Musk said.

Another question was asked about Tesla’s affordable model. Tesla noted that production did start in the first half of 2025, and a ramp is expected in the remaining months of the year. As for Tesla investing in xAI, the CFO noted that this earnings call is not the right venue to discuss such matters.

17:07 CT – Elon Musk admitted that he is creating another Master Plan. He reiterated the idea that the future of Tesla is exciting, and the company has the potential to change the world.

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An investor question about HW3 vehicle was asked. Tesla noted that it is focused on rolling out Unsupervised FSD to HW4 cars first, then go back to see what can be done with HW3 cars.

As for how the Trump administration’s regulations could affect Megapack sales, Tesla noted that it still believes solar and battery projects should still see growth. “We’re forecasting a very strong second half of the year,” the company noted. Tesla is expected to launch its third Megafactory in Houston next year.

17:11 CT – Analyst questions begin. The analyst asks if Tesla could share KPIs on Tesla’s Robotaxi rollout. Tesla noted that it only has a handful of vehicles for now, but the company has more than 7,000 driverless miles in Austin so far. Elon also emphasized that the Robotaxi service is designed for maximum comfort and safety, and that the Cybercab is designed to be optimal when it comes to cost. “Cost per mile for the Cybercab will be little,” Musk said.

“Tesla Roboatxi fleet will go from tiny to gigantic in probably a very short period of time,” Musk added.

17:15 CT – Adam Jonas of Morgan Stanley asked if Elon is comfortable with having just 13% control of Tesla. Elon Musk admitted that this is a major concern for him, and he is hoping that the topic could be discsused in the upcoming annual shareholder meeting.

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Elon joked that he wants to have enough control in Tesla that he cannot be ousted by activist investors, but not tool large that he cannot be removed, just in case he goes crazy. He reiterated the idea that he would be joined by several Optimus robots onstage at the upcoming annual shareholder meeting.

17:21 CT – Barclays asks Elon about the idea of putting non-Tesla vehicles being put in the Robotaxi network. Elon admitted that Tesla has really not thought about it much, though the company is extremetly focused on safety.

Goldman Sachs asked if Tesla could comment on FSD subscription trends. Tesla noted that since FSD V12 was launched in North America, there has been a notable improvement in consumer adoption. When asked if more price adjustments for FSD should be expected, Elon noted that Tesla is in a transition period in the United States. He admitted that Tesla could have a few rough quarters, but once autonomy is at scale, he would be surprised if Tesla’s economics are not compelling.

17:29 CT – Truist asked about Tesla’s more affordable models and any updates on what it would look like. Elon Musk joked that it would just look like the Model Y. He also noted that people desire Teslas, but the cars are still not affordable enough.

When asked about xAI and Tesla, Elon Musk explained that the two companies are very different. He noted that there are also some people that like to work in xAI but not Tesla, and vice versa. Would they like to work on superintelligence, or real-world AI? Both are compelling endeavors.

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17:30 CT – And that wraps up Tesla’s second quarter 2025 earnings call! Thank you so much for following along as we covered this event. Until the next time!

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Investor's Corner

Tesla (TSLA) Q2 2025 earnings results

Tesla posted total revenues of $22.496 billion and non-GAAP EPS of $0.40 per share.

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Credit: Tesla

Tesla (NASDAQ:TSLA) has released its Q2 2025 earnings results in an update letter. The document was posted on the electric vehicle maker’s official Investor Relations website after markets closed today, July 23, 2025. 

Tesla’s Q2 earnings come on the heels of a quarter where the company produced over 410,000 vehicles, delivered over 384,000 vehicles, and deployed 9.6 GWh of energy storage products. The second quarter also saw the launch of the Roboaxi service’s pilot program in Austin, a notable step forward for the company’s self-driving program.

Tesla’s Q2 2025 earnings in a nutshell


As could be seen in Tesla’s Q2 2025 update letter, the company posted GAAP EPS of $0.33 and non-GAAP EPS of $0.40 per share. Tesla also posted total revenues of $22.496 billion.

In comparison, Wall Street expected Tesla to post earnings per share of $0.39, down 25% from a year ago. Tesla’s revenue is forecasted to fall 13% to $22.19 billion, and analysts also expect the electric vehicle maker to post lower margins this quarter.

Tesla’s other Q2 metrics

For the second quarter, Tesla’s total revenue decreased 12% YoY to $22.5B. Operating income also decreased 42% YoY to $0.9B, resulting in a 4.1% operating margin. Tesla still has a strong war chest, as the company’s quarter-end cash, cash equivalents and investments was $36.8B.

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Product Plans

Tesla noted in its Q2 2025 update letter that the company remains focused on “prudently growing our vehicle volumes in a capex efficient manner by using our existing vehicle production capacity before building new lines.” Still, Tesla noted that plans for new vehicles that will launch in 2025 remain on track, including initial production of a more affordable model in 1H25.

Tesla also reiterated that the Cybercab will be produced using the company’s upcoming “Unboxed” manufacturing process. Volume production of the Cybercab is expected to start sometime in 2026.

Below is Tesla’s Q2 2025 update letter:

TSLA-Q2-2025-Update by Simon Alvarez on Scribd

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Elon Musk reveals big plans for Tesla Optimus at the Supercharger Diner

Will Optimus deliver my Tesla Club on roller skates? I’m hopeful.

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Credit: Elon Musk | X

Elon Musk revealed on X on Wednesday that Tesla Optimus will soon be getting a job at the Supercharger Diner in Los Angeles, and its role will be right on par with what we believed the humanoid bot would be perfect for.

While Optimus was spotted serving popcorn at the Diner on Monday as it opened for the first time, that’s its only job, at least for now. Musk said Optimus will be getting a promotion in 2026, and it will be a food runner, bringing your order straight to your car, eliminating the need to go inside yourself.

It will complete what Tesla hopes is a full-fledged 50s diner experience, curated by the imagination of the future. In the 1950s, drive-in diners were a common hangout to grab a bite and watch a movie. Tesla opened its Supercharger Diner in Los Angeles earlier this week, but it has a futuristic twist to it.

You can order food directly from your car, sync your center touchscreen and speakers to the two massive projection screens that Tesla is playing movie scenes on at the Diner, and even go inside for a true break from your car.

Next year, Tesla will take it a step further, Musk confirmed:

The Diner features 80 Superchargers that can be used by both Tesla and non-Tesla EVs, provided that the manufacturer of the electric car has access to the company’s robust network. It is also available to non-EV owners, as they can park their cars and stop in for a quick bite to eat.

Tesla’s full menu at the Diner is available here, and its focus for the restaurant was to provide healthier options by sourcing most of its food from local, organic, and humane farms:

Optimus’s capabilities seem to be progressing to a point where Tesla feels confident that the humanoid robot can handle carrying food and delivering it to customers at their cars. Whether it will be put on roller skates is another question, but we’re hopeful Optimus can do it when it gets its promotion next year.

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