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SpaceX Texas test HQ fires up a dozen Falcon, Starship rocket engines in six hours

On March 19th, SpaceX's McGregor development team fired up at least 11 Falcon engines and 2 Starship engines in a six-hour period. (SpaceX)

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Though it often falls under the radar relative to SpaceX’s high-profile Boca Chica Starship hub, another even more important Texas outpost appears to be busier than ever testing the rocket engines and boosters instrumental to all SpaceX operations.

Famous for occasionally supporting half a dozen or more rocket tests on busy days, SpaceX’s McGregor, Texas facilities showed off exactly that kind of rapid-fire activity on Friday, March 19th, flexing the sheer variety and volume of rocket hardware liable to pass through its gates.

A 2017 overview provides the best recent view behind the scenes of SpaceX’s McGregor, TX rocket development and testing facilities.

Located on the grounds of a former US military explosives factory, SpaceX’s McGregor, Texas rocket development and test facilities have been testing Falcon, Dragon, and Starship parts and supporting each program’s development for a decade and a half. After being fabricated and assembled in Hawthorne, California, virtually every single active propulsive component SpaceX has ever flown has spent some amount of time in McGregor.

For boosters, every cold gas maneuvering thruster is qualified in Texas before being sent back to Hawthorne for final installation. Each stage’s nine Merlin 1D engines are individually tested in McGregor, shipped back to Hawthorne, installed on a booster, shipped back to McGregor, and static fired as an integrated first stage before SpaceX deems a Falcon 9 or Falcon Heavy core ready for flight. The exact same process (separate engines and thruster qualification followed by integrated vehicle testing) is performed with Falcon upper stages and their Merlin Vacuum engines, as well as all Dragon spacecraft and their Draco (and SuperDraco) thrusters. The same is true for the two Raptor engine variants and cold-gas thrusters that power Starship.

On March 19th, nearly all of those different engines and vehicles – and the separate stands used to test each of them – came together for an exceptionally busy day at McGregor. According to local resident Reagan (@bluemoondance74), who lives within earshot of SpaceX’s extraordinarily busy rocket testing HQ, at least five unique tests were performed in just six hours – all but one of which was squeezed into the last ~125 minutes.

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Around 2:40 pm, an unknown test – possibly a Merlin Vacuum (MVac) or Merlin 1D (M1D) engine – kicked off the salvo. Four hours later, SpaceX completed arguably the most significant test of the day, firing up the first Falcon Heavy center core to head to McGregor in almost 24 months. Assuming that static fire was a success, the booster will be inspected, have its tanks cleaned, and be shipped to Florida to complete the first stage of SpaceX’s fourth Falcon Heavy rocket for a launch as early as July.

An hour and a half after the Falcon Heavy center core’s static fire, SpaceX fired up a Raptor engine (either a sea level or vacuum variant), followed by another likely M1D or MVac test just minutes later. Finally, at 8:52 pm, SpaceX ignited a second Raptor engine at an entirely separate vertical test stand (known as the tripod stand) recently modified to support testing Starship engines in a more flight-like configuration. Altogether, assuming no repeated tests, SpaceX effectively tested a booster and 13 (9+4) rocket engines in a little over six hours.

Both Merlin 1D test bays are usually occupied. (SpaceX)
Sans nozzle, a Merlin Vacuum engine is static fired on a stand adjacent to those M1D bays. (SpaceX)
A sea-level Raptor operates at one of McGregor’s two horizontal test bays. (SpaceX)
SpaceX tests Raptor Vacuum prototypes on the same horizontal bays. (SpaceX)
A vertical test stand also helps SpaceX test Raptors in more flight-like conditions.

More likely than not, one or both of those Raptors will soon find themselves on a Starship or Super Heavy prototype in Boca Chica. The M1D and/or MVac engines will assuredly find a place on a future Falcon booster or upper stage. The Falcon Heavy center core (B1065 or B1066) is scheduled to launch as early as July 2021 and will be the first of its kind to fly in an intentionally expendable configuration. Another Falcon Heavy center core – possibly B1067 – will likely also find itself in McGregor within the next few months for the rocket’s fifth launch, scheduled no earlier than (NET) October 2021.

All told, SpaceX’s McGregor rocket testing HQ is about as busy as – if not busier than – it’s ever been as the company works towards an unprecedentedly ambitious 48-launch 2021 manifest, builds and flies at least four Dragon spacecraft, and pursues an even more ambitious effort to begin orbital Starship launches this summer. Quieted away in rural Texas, McGregor may largely go unnoticed but its infrastructure remains as integral as ever for virtually every single SpaceX project – past, present, and future.

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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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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