SpaceX abruptly aborted the second launch of its upgraded Starship V3 on Thursday, moments after the booster began firing. Four Raptor engines failed to ignite, triggering an automatic abort at T-0. Elon Musk says two engines will be replaced, with another attempt possible within days. It’s the company’s first Starship setback since its record-breaking IPO.

Key Takeaways

• SpaceX aborted its second Starship V3 launch on July 16
• Four Raptor engines failed to ignite, triggering an auto-abort
• Musk says two engines will be replaced before the next try
• The payload was the first batch of V3 Starlink satellites
• It’s SpaceX’s first Starship test since its record IPO

What Happened on the Pad

The scrub came at the last possible moment. SpaceX abruptly aborted the second attempted launch of its upgraded Starship rocket system on Thursday, just moments after the booster ignited at its complex in South Texas.

The countdown had looked clean. The attempt was chugging along with only a brief hold at T-minus one minute, which cleared quickly, and as the countdown expired the pad’s water deluge system fired and the Super Heavy booster began lighting its engines, only for everything to suddenly shut down.

The cause was an ignition failure. Broadcast graphics appeared to show that four of the company’s new Raptor engines did not fire upon ignition, out of the 33 on the Super Heavy booster.

A SpaceX spokesperson described it in real time. Dan Huot said on the livestream that the team got all the way down to start-up, then triggered a hold on the booster that shut the engines down right as they were igniting.

Musk’s Explanation and the Fix

Musk confirmed the problem quickly. On X, he wrote that some of the engines didn’t start, triggering an automatic launch abort, and said the company will replace two of them.

The next attempt isn’t far off. Musk said SpaceX won’t try to launch Starship again until next week, adding it hopes to fly again in a few days, though he did not specify which engines failed or why four appear to have been affected.

The turnaround isn’t instant, though. Before any engine work can begin, crews must drain propellant from both the Super Heavy booster and the Starship upper stage, a process involving hundreds of tonnes of liquid oxygen and methane that can’t be rushed, so this isn’t an overnight reset.

What Was Supposed to Launch

The mission had a specific goal. SpaceX was hoping to launch its first third-generation Starlink satellites into space on this flight, the 13th Starship test overall and only the second for the upgraded V3 vehicle.

Those satellites weren’t meant to stay. They are designed to burn up around 20 minutes after deployment, since Starship has not yet demonstrated the ability to reach Earth orbit, making this a test of the deployment process rather than an operational launch.

The stakes reach beyond one flight. The upgraded Starship and Starlink are central to SpaceX’s ambitious plan to prove that orbital data centers are both technologically and economically viable, and Starlink is the company’s largest revenue generator and only profitable segment.

The IPO Overhang

This setback carries a new kind of weight. It’s SpaceX’s first Starship test attempt since it went public on June 12 in the largest IPO in history, a transaction that raised more than $85 billion.

The debut was dramatic but has faded. SpaceX briefly touched the valuations of Amazon and Microsoft at listing, but its stock has steadily fallen over the intervening month, and shares closed below the $135 IPO price on Thursday before sliding further after hours.

The market reaction was immediate. The stock sank more than 4% in after-hours trading following the aborted launch, a reminder that scrubbed tests, once treated as routine engineering, now come with a public-market price tag.

A Pattern of Mixed V3 Results

The abort follows an imperfect debut. SpaceX was trying to return to flight just weeks after the first-ever Starship V3 launch in May, a mission that was a mixed bag.

That flight had partial success. Getting a newly upgraded rocket off the pad was a real step forward, and SpaceX deployed a number of Starlink simulators, but the Super Heavy booster suffered a failure before it could attempt a simulated landing, leading to an FAA-ordered review.

So Thursday extends the growing pains. The V3 system is SpaceX’s most powerful yet, and working through ignition reliability and booster performance is part of the iterative, test-heavy approach that has defined the program.

Why It Matters

The engineering story is one of caution working as designed. An automatic abort that halts a launch when engines misfire is the system doing its job, protecting an expensive vehicle rather than risking a catastrophic failure on the pad.

But the context has changed the stakes. As a public company, SpaceX now faces investor scrutiny over the same test-and-iterate cadence it long treated as normal, and each visible setback moves the stock in ways it never used to.

The bigger picture is ambition meeting reality. Starship V3 underpins SpaceX’s boldest bets, from orbital data centers to a next-generation Starlink, and steady progress matters more than ever. A few replaced engines may put the next attempt just days away, but the episode shows how much rides on getting this vehicle flying reliably.

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