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SpaceX fully stacks Starship rocket for the first time in six months

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3 years ago

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For the first time in more than six months, SpaceX has stacked both stages of its next-generation Starship rocket, creating the largest and most powerful launch vehicle ever fully assembled.

It’s not the first time. SpaceX has conducted three other ‘full-stack’ Starship demonstrations: once in August 2021 and again in February and March 2022. But earlier this year, SpaceX (or at least CEO Elon Musk) decided to give up on the Starship upper stage and Super Heavy booster prototypes that had supported all three of those prior tests and, at one point, been considered a candidate for the rocket’s first orbital launch attempt. Booster 4 and Ship 20 were consigned to a retirement yard by June 2022.

By then, SpaceX had already begun testing the new favorites for Starship’s orbital launch debut: Super Heavy Booster 7 (B7) and Starship 24 (S24). Almost exactly six months after the start of that busy period of testing, both prototypes recently reached the point where SpaceX was confident enough in their progress to combine the two for the most challenging phase of Starship testing yet.

After an aborted predawn attempt on October 11th, SpaceX technicians worked out some mystery kinks in crucial infrastructure located at Starship’s first (nearly) finished orbital launch pad in Boca Chica, Texas. As part of a cart-before-horse gamble made by CEO Elon Musk that has seen SpaceX entirely remove legs from all recent Starship and Super Heavy prototypes in the hope that it will one day be able to catch the building-sized rocket stages out of mid-air, the company has built a launch tower ~145 meters (~475 ft) tall and outfitted it with three giant robotic arms. Two of those arms are identical and linked together, forming a sort of claw that could one day close around hovering rockets to preclude the need for landing legs. A simpler third arm swings in and out to connect Starship’s upper stage to the launch pad’s power, propellant, and gas supplies.

The ‘chopsticks,’ as they’re known, have another even more important purpose: assembling Starship rockets at the launch pad. Thanks to their sturdy connection to a tower with a foundation sunk deep into the Boca Chica wetlands and a design that forgoes a hanging hook or jig for giant arms, they are far less sensitive to winds than the immense crane otherwise required to stack Starship on top of Super Heavy. Sitting a stone’s throw from the Gulf of Mexico, storms and high winds are not exactly uncommon.

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Around sunset on October 11th, SpaceX had better luck on its third attempt and was able to move the arms into place under Ship 24. Weighing 100 tons or more (~220,000+ lb) and measuring nine meters (~30 ft) wide and ~50 meters (~165 ft) tall, the Starship was then slowly lifted about 80 meters (~250 ft) off the ground, translated over to Booster 7, and lowered on top of the 69-meter-tall (~225 ft) first stage. After about two more hours of robotically tweaking their positions, the two Starship stages were finally secured together. With the arms still attached to Ship 24, SpaceX workers were able to approach the rocket and prepare to connect the swing arm’s quick-disconnect umbilical to Starship.

Ship 24 and Booster 7 have both completed several major tests to date. (SpaceX)

Since they began qualification testing in April and May 2022, Booster 7 and Ship 24 have each completed several cryogenic proof tests, eight ‘spin-primes’ of some or all of their Raptor engines, and several static fires of those same engines. Most recently, Ship 24 ignited all six of its Raptors, but the seemingly successful September 8th test was followed by more than a month of apparent repairs. Booster 7 last completed a static fire that ignited a record seven of its 33 Raptor engines – offering an idea of how much further SpaceX still has to go to finish testing the Super Heavy.

According to CEO Elon Musk, Booster 7 and Ship 24 will attempt Starship’s first full-stack wet dress rehearsal (WDR) once all is in order. The prototypes will be simultaneously loaded with around 5000 tons (~11M lb) of liquid oxygen and methane propellant and then run through a launch countdown. Diverging just before ignition and liftoff, a WDR is meant to be more or less identical to a launch attempt.

If the wet dress rehearsal goes to plan, SpaceX will then attempt to simultaneously ignite all 33 of the Raptor engines installed on Super Heavy B7, almost certainly making it the most powerful liquid rocket ever tested. Even if all 33 engines never reach more than 60% of their maximum thrust of 230 tons (~510,000 lbf), they will likely break the Soviet N-1 rocket’s record of 4500 tons of thrust (~10M lbf) at sea level. It would also be the most rocket engines ever simultaneously ignited on one vehicle. SpaceX will be pushing the envelope by several measures, and success is far from guaranteed.

It’s unclear if SpaceX will immediately attempt a full wet dress rehearsal or 33-engine static fire. Based on the history of Ship 24 and Booster 7 testing, it would be a departure from the norm if the company doesn’t slowly build up to both major milestones with smaller tests in the interim. At minimum, assuming WDR testing is completed without major issue, SpaceX will likely attempt at least one or more interim static fires with fewer than 33 engines before attempting the first full test.

If both milestones (a full WDR and 33-engine static fire) are completed without significant issue, there’s a chance that SpaceX could move directly into preparations for Starship’s first orbital launch attempt without unstacking the rocket. In the likelier scenario that some issues arise and some repairs are required, the path will be more circuitous but should still end in an orbital launch attempt late this year or early next.

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Booster 7’s 33 Raptor V2 engines. (SpaceX)
Mechazilla’s third successful Starship stack. (SpaceX)
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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 Cybercab sightings on public roads are becoming more frequent

After it was unveiled a year ago by Tesla, the company has made some pretty drastic jumps in progress in terms of the Cybercab, but a recent development has truly pushed fans of the company to think it is probably going to be available soon.

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2 hours ago

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November 6, 2025

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Credit: Petersen Museum

Tesla Cybercab sightings on public roads are becoming much more frequent, and they all are pointing to one thing: imminent production.

The Tesla Cybercab is the company’s vehicle developed for fully autonomous travel, as it will be manufactured without a steering wheel or pedals, according to CEO Elon Musk.

Tesla Robotaxi Cybercab: Seats, price, special features, release date, and more

After it was unveiled a year ago by Tesla, the company has made some pretty drastic jumps in progress in terms of the Cybercab, but a recent development has truly pushed fans of the company to think it is probably going to be available soon.

Last week, we reported on the first Cybercab sighting when the vehicle was finally being tested on public roads. The spotting was not a one-time deal, as we are now seeing many more sightings on public roads:

The first spotting was in Palo Alto, just a few blocks from Tesla’s Engineering Headquarters in Los Altos. This second sighting appears to be relatively close to that first spotting, and it seems unlikely Tesla would be putting it on roads much further than that.

The public on-road testing of the Cybercab marks a major milestone in the entire project for Tesla. These early sightings and testing phases are usually followed by a lot of speculation about when the vehicle could end up in the hands of customers.

However, Tesla has already put a definitive date on when Cybercab production will begin, as Elon Musk said during the Q3 Earnings Call that it would roll off production lines in Q2 of next year.

But the speculation regarding the Cybercab is slightly different than other vehicles because Tesla has been developing it for fully autonomous travel; it’s not meant to be driven by humans but instead by software and the company’s Full Self-Driving suite.

Despite the vehicle being spotted with a steering wheel and pedals in the recent sightings, Musk has maintained that the Cybercab will not be developed with typical controls for a human. He recently confirmed this, and it does not seem the company is willing to veer too much from its plans for an autonomous car.

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Tesla Model Y Performance is rapidly moving toward customer deliveries

New drone images from noted drone operator and Gigafactory Texas observer Joe Tegtmeyer show Tesla is moving forward quickly in terms of its progress in producing the new Model Y Performance.

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3 hours ago

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November 6, 2025

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Credit: Tesla

Tesla has rapidly progressed in the production of its most anticipated Model Y trim level: the Model Y Performance.

New drone images from noted drone operator and Gigafactory Texas observer Joe Tegtmeyer show Tesla is moving forward quickly in terms of its progress in producing the new Model Y Performance.

The vehicle is being spotted more frequently at the factory located just outside of Austin, with what appears to be the first units rolling out to outbound lots:

In the United States, Tesla unveiled the Model Y Performance on September 30, the newest iteration of the fastest trim level of the best-selling car in the world for the past two years. It was launched on the very last day of the $7,500 electric vehicle tax credit in the United States.

It featured a handful of performance improvements, including a 0-60 MPH acceleration rate of 3.3 seconds, a trim from the 3.5 seconds the 2025 version offered.

Additionally, the range has gone from 277 miles to 308 miles, a notable improvement in terms of how far it can travel on a charge.

There are also a handful of hardware changes that Tesla made to improve its aerodynamic performance, which all likely can be attributed to the boost in speed and acceleration, as well as range.

The vehicle was initially launched in Europe, which was not surprising, especially as Tesla was testing the new Performance trim at the famed Nurburgring in Germany.

Deliveries are currently slated for late November, but some orders are getting projections of mid-December for their Model Y Performance, which would help Tesla bolster its end-of-year delivery figures and follow up on an extremely bullish finish to Q3, which was the company’s strongest performance in history.

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Twitter co-founder Jack Dorsey endorses Elon Musk Tesla pay package

Dorsey framed the pay package as an engineering and governance crossroads for Tesla.

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5 hours ago

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November 6, 2025

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Twitter co-founder and Square CEO Jack Dorsey has publicly backed Elon Musk’s leadership ahead of Tesla’s pivotal shareholder vote, which is expected to be decided later today at the company’s 2025 annual meeting. 

Dorsey framed the pay package as an engineering and governance crossroads for Tesla.

Dorsey’s public nod framed as an engineering defense of Musk

In a post on X, Dorsey weighed in on Tesla’s post about being in a “critical inflection point.” As per the Twitter-co-founder, the vote on Musk’s 2025 performance award is not about compensation. Instead, it’s about ensuring the path for the company’s engineering in the coming years. 

“This is not about compensation. it’s about ensuring a principled (and exciting!) engineering approach to the company’s future,” Dorsey wrote on his post, later stating that users of Cash app with TSLA shares would be able to vote for the CEO’s proposed 2025 performance award. 

Elon Musk appreciated Dorsey’s endorsement, responding to the Twitter co-founder’s post with a heart emoji. Musk has been pretty thankful for the support for is fellow tech executives, also thanking Michael Dell recently, who also advocated for its proposed 2025 performance award.

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Musk’s support

While Elon Musk’s 2025 performance award has received opposition from proxy advisors such as Glass Lewis and ISS, it has received quite a lot of support from longtime bulls such as ARK Invest, and, more recently, Schwab Asset Management following calls from TSLA retail shareholders. 

“Schwab Asset Management’s approach to voting on proxy matters is thorough and deliberate. We utilize a structured process that focuses on protecting and promoting shareholder value. We apply our own internal guidelines and do not rely on recommendations from Glass Lewis or ISS. In accordance with this process, Schwab Asset Management intends to vote in favor of the 2025 CEO performance award proposal. We firmly believe that supporting this proposal aligns both management and shareholder interests, ensuring the best outcome for all parties involved,” Charles Schwab told Teslarati.

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