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SpaceX sends Starship prototype to launch pad after engine installation

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4 years ago

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After several weeks of work back at SpaceX’s Starbase rocket factory, the company has transported a new and improved Starship prototype to nearby test and launch facilities, where it joined a similarly upgraded Super Heavy booster.

That Starship prototype – Ship 24 or S24 – is closely following in the footsteps of Super Heavy Booster 7 (B7), which kicked off a similar phase of preflight testing about two weeks ago. The purposes of their latest trips from the factory to the launch pad are also largely the same and could potentially open the door for Starship’s inaugural orbital launch attempt sometime later this year if the process goes smoothly. Both protypes have a ways to go, however.

Booster 7 and Ship 24 got off to fairly rocky starts when they began a less risky phase of proof testing in May and June. Apparently caused by improper sequencing or a small design flaw, a large steel tube meant to carry liquid methane fuel through Booster 7’s liquid oxygen tank and double as a storage vessel for landing propellant violently imploded when a vacuum formed inside it. It took SpaceX several weeks to repair the damage but, defying the odds, the tube was eventually repaired and Booster 7 completed another two proof tests soon after.

A few weeks later, during one of Ship 24’s first tests, a much smaller internal pipe – likely carrying high-pressure gas – also failed, damaging heat shield tiles and other adjacent plumbing. S24’s troubles were less dramatic and only took a few days to fix, but both were still new failure modes for the Starship program and served as a reminder that Starship hardware remains relatively immature and that SpaceX is still learning. Nonetheless, they also demonstrated SpaceX’s ability to respond quickly to new problems, as both B7 and S24 sailed through additional testing without apparent issue after quick repairs.

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Ship 24’s first cryoproof. (NASASpaceflight – Starbase Live)
Both of Booster 7’s successful post-repair cryoproof tests. (NASASpaceflight Starbase Live)

After completing cryogenic proof and thrust simulation testing, B7 and S24 returned to SpaceX’s factory facilities for Raptor installation and finishing touches. SpaceX took about six weeks to install 33 Raptor engines and associated heat shielding on Booster 7, while installing six Raptors and wrapping up a few other aspects of Ship 24 took about four weeks.

Collectively, Booster 7 and Ship 24 have 39 Raptor engines installed. (SpaceX)

Aside from the installation of most of the Starship’s missing heat shield tiles, Ship 24’s preparations did include one particularly unique step involving its payload bay prototype. SpaceX’s first stab at a Starship payload bay has been likened to a giant Pez dispenser, which is not entirely inaccurate. Exclusive to Starlink, satellites will be stored on a rectangular rack that’s assumed to operate like an elevator. As an unknown mechanism pushes two satellites at a time through Starship’s slot-like bay door, the stack of satellites will feed downwards like bullets in a magazine until the full set is fully deployed.

A render of Starship’s Starlink bay in action. (SpaceX)

In late June, SpaceX attached a giant white box to a crane and positioned the box to interface with Ship 24’s bay door, where it hung for the better part of a day. The test confirmed speculation that the box was meant to solve perhaps the most obvious problem SpaceX’s unique payload bay design posed: payload installation. SpaceX’s solution appears to involve using the deployment mechanism in reverse, with the white box conveying Starlink Gen2 satellites through the ‘slot’ and the dispenser grabbing and lifting each pair up into the bay.

It’s possible that Ship 24 will have a handful of Starlink V2/Gen2 satellites loaded into its bay if it passes its next tests. Before being cleared for flight, Ship 24 will need to complete at least one nominal wet dress rehearsal (simulating every aspect of a launch short of engine ignition) and one six-engine static fire, though several tests are far more likely. Starship S24’s test campaign will benefit significantly from Starship S20, which survived extensive testing (and multiple six-Raptor static fires) in 2021. In comparison, Super Heavy B7’s similar wet dress rehearsal and static fire test campaign will be almost entirely new to SpaceX, save for a single three-engine static fire completed by an outdated booster prototype last year.

SpaceX could attempt to static fire Booster 7 for the first time as early as Wednesday, July 6th. It’s unclear if the company will attempt to kick off Ship 24’s next round of testing in the gaps between Super Heavy B7’s static fire testing. While unlikely, SpaceX is technically capable of testing Ship 24 and Booster 7 simultaneously.

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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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Elon Musk

Countdown: America is going back to the Moon and SpaceX holds the key to what comes after

NASA’s Artemis II launches Wednesday, sending humans near the Moon for the first time since 1972.

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March 31, 2026

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For the first time since Apollo 17 touched down on the lunar surface in December 1972, the United States is sending humans back toward the Moon. NASA’s Artemis II mission is set to launch as early as this week from Kennedy Space Center in Florida, carrying four astronauts on a 10-day journey around the Moon and back to Earth. It will not land anyone on the surface this time, but it is the first crewed flight in over half a century to travel beyond low Earth orbit, and it sets the stage for Elon Musk’s SpaceX missions to follow.

The mission uses NASA’s Space Launch System rocket and the Orion spacecraft, which will fly around the Moon before splashing down in the Pacific Ocean around April 10. For context, an uncrewed Artemis I flew the same path in 2022, proving the hardware worked. Artemis II now tests it with people aboard.

According to NASA’s official countdown blog, launch preparations are on track with an 80 percent chance of favorable weather. “Hey, let’s go to the moon!” Commander Wiseman told reporters upon arriving at Kennedy Space Center.

Source: NASA

Beyond Artemis II lies the lander question, and that is where SpaceX enters directly. In 2021, NASA awarded SpaceX a $2.89 billion contract to develop the Starship Human Landing System, a modified version of Starship designed to ferry astronauts from lunar orbit to the surface. The original plan called for SpaceX to deliver that lander for Artemis III, which was to be the first crewed lunar landing. Timing for Starship development, however, caused NASA to restructure the mission sequence entirely.

Before SpaceX’s Starship Human Landing System (HLS) can put anyone on the Moon, it has to solve a problem no rocket has demonstrated at scale, which is refueling in orbit. Because the Starship HLS requires approximately ten tanker launches worth of propellant loaded into a depot in low Earth orbit before it has enough fuel to reach the lunar surface, SpaceX plans to conduct this refueling process using its upgraded V3 Starship. And until that demonstration flies and succeeds, the Starship moon lander remains a question mark.

SpaceX’s Starship V3 is almost ready and it will change space travel forever

In February 2026, NASA Administrator Jared Isaacman confirmed that Artemis III, now planned for mid-2027, and will instead test lunar landers in low Earth orbit, with the actual landing pushed to Artemis IV that’s targeted for 2028.

Musk responded to earlier criticism of SpaceX’s schedule by posting on X that his company is “moving like lightning compared to the rest of the space industry,” and added that “Starship will end up doing the whole Moon mission.” The contract competition was also reopened in October 2025 by then NASA chief Sean Duffy, who cited Starship’s delays and said the agency needed speed given China’s own stated goal of landing astronauts on the Moon by 2030.


Artemis came from the first Trump administration’s 2017 Space Policy Directive 1, which directed NASA to return humans to the Moon. The program picked up pace through the 2020s, with the Orion spacecraft and SLS taking years to develop at enormous costs. SpaceX entered the picture in 2021 as the chosen lander contractor, tying the commercial space sector into what had historically been an all government undertaking.

Whether SpaceX’s Starship ultimately carries astronauts to the lunar surface or shares that role with Blue Origin’s competing lander, this week’s Artemis II launch is the necessary first step. Getting four humans to the Moon’s vicinity and back safely is the proof of concept everything else depends on.

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Elon Musk

Elon Musk debunks latest rumors about SpaceX IPO

Musk has swiftly put to rest circulating reports suggesting that SpaceX would exclude popular retail brokerages Robinhood and SoFi from its highly anticipated initial public offering. In a direct response posted on X on March 31, Musk stated simply, “These reports are false,” addressing widespread speculation fueled by a Reuters article.

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March 31, 2026

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(Credit: SpaceX)

Tesla and SpaceX CEO Elon Musk debunked the latest rumors about the space exploration company’s initial public offering (IPO), which has been the subject of a wide array of speculation over the last few weeks.

With SpaceX likely heading to Wall Street to become a publicly-traded stock in the coming months, there is a lot of speculation surrounding how it will happen, whether the company will potentially combine with Tesla, and more.

Tesla and SpaceX to merge in 2027, Wall Street analyst predicts

But the latest rumors have to do with where SpaceX will list the stock.

Musk has swiftly put to rest circulating reports suggesting that SpaceX would exclude popular retail brokerages Robinhood and SoFi from its highly anticipated initial public offering.

In a direct response posted on X on March 31, Musk stated simply, “These reports are false,” addressing widespread speculation fueled by a Reuters article.

The Reuters report, published March 30, claimed that Morgan Stanley’s E*Trade was in talks to lead the sale of SpaceX shares to small U.S. investors.

Sources indicated that Robinhood and SoFi, despite pitching for roles, faced potential exclusion from the retail allocation, with Fidelity also competing for a piece of the action. The story quickly spread across financial media, raising concerns among retail investors eager to participate in what could be one of the largest IPOs in history.

SpaceX has a reported valuation nearing $1.75 trillion, and Musk’s plan to allocate up to 30 percent of shares to individual investors — far above the typical 5-10% — had generated massive excitement.

Musk’s concise denial immediately calmed the narrative. The original X post quoting the rumor garnered significant engagement, with users expressing relief that everyday investors would not be sidelined.

This episode reflects Musk’s hands-on approach to SpaceX’s public debut.

Earlier reporting revealed plans for an unusually large retail slice to leverage Musk’s dedicated fan base and stabilize post-IPO trading. SpaceX aims to file potentially as early as this period, building on momentum from its Starship program and Starlink growth.

The IPO could mark a transformative moment, potentially elevating Musk’s status further while democratizing access to a company long reserved for accredited investors and institutions.

The rumor’s quick debunking also revives debates about retail access in high-profile listings. Robinhood gained popularity during the 2021 meme-stock surge but faced criticism for past trading restrictions.

SoFi has positioned itself as a modern financial platform for younger investors. Excluding them could have limited participation from tech-savvy retail traders who form a core part of Musk’s supporter base across Tesla and SpaceX.

While details remain fluid, Musk’s intervention reinforces commitment to broad accessibility. As preparations advance, investors await official filings. For now, the message is clear: rumors of restricted retail access were overstated, keeping the door open for widespread participation in SpaceX’s public chapter.

This development comes amid broader market enthusiasm for space and technology stocks. Musk’s transparency through X continues to shape public perception, distinguishing SpaceX’s path from traditional Wall Street norms. With retail allocation potentially reaching 30 percent, the IPO promises to be both commercially massive and culturally significant.

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Elon Musk

Tesla Optimus Gen 3 is coming to the Tesla Diner with new ambitions

Tesla’s Optimus robot left the Hollywood Diner within months of opening. Now Musk is planning its return with a bigger role and a major Gen 3 upgrade underway.

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22 hours ago

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March 30, 2026

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Tesla Optimus Gen 3 [Credit: Tesla]

Tesla’s Optimus robot was one of the most talked-about features when the Tesla Diner opened on Santa Monica Boulevard in Hollywood on July 21, 2025. Dubbed “Poptimus” by Tesla fans, the Gen 2 robot stood upstairs at the retro-futuristic, drive-in theater and Tesla Supercharging station, scooping popcorn into bags and handing them to guests with a wave.

The diner itself had been years in the making. Elon Musk first floated the idea in 2018 with a tweet about building an “old-school drive-in, roller skates & rock restaurant” at a Hollywood Supercharger. What eventually opened was a unique two-story neon-lit space, with 80 EV charging stalls, and Optimus serving as a live demonstration of where Tesla’s ambitions were headed.


But Optimus did not stay long, and was gone by December 2025.

Now, the robot is set to return with a more demanding job. Musk has ambitions for Optimus to take on a food runner role in 2026, delivering meals directly to cars at the Supercharger stalls. While the latest Gen 3 Optimus is likely to initially take on its previous popcorn-serving role, it wouldn’t be out of the question for Optimus to see a quick promotion. With improved  hand dexterity that features 50 total actuators and 22 degrees of freedom per hand, and significantly more powerful processing through Tesla’s latest AI5 chip that includes Grok-powered voice interaction, Musk described Optimus at the Abundance Summit on March 12, 2026, as “by far the most advanced robot in the world, Nothing’s even close.”

That confidence is backed by a major manufacturing shift. At the Q4 2025 earnings call in January, Musk announced Tesla would discontinue the Model S and Model X and convert those Fremont production lines to build Optimus. “It’s time to basically bring the Model S and X programs to an end,” he said, calling for a pivot that reflects where the Tesla’s future lies.

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