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newsFriday, July 17, 2026·3 min read

SpaceX Starship’s 13th Test Flight Abort: Engines Fail Seconds Before Liftoff

Starship’s 13th test launch was aborted seconds before liftoff when four of its 33 engines failed to ignite, prompting a fuel drain and engine replacements.

A futuristic spacewoman in a helmet looks up contemplatively, creating a sci-fi atmosphere.
Photo: Mikhail Nilov

On Thursday, SpaceX’s massive Starship rocket stood poised for its 13th test flight before an automatic abort halted the countdown just seconds before liftoff. The abort was triggered when four of the vehicle’s 33 Raptor engines failed to ignite, causing the remaining 29 to shut down instantly. Engineers quickly began draining the propellant and announced that two engines will be swapped out before the next attempt. The incident underscores the challenges of scaling up the world’s most powerful launch system and delays the planned deployment of twenty new Starlink satellites. Understanding what went wrong is crucial for the timeline of SpaceX’s orbital‑flight ambitions.

What happened

SpaceX initiated engine ignition three seconds before the scheduled liftoff, but onboard telemetry showed that four of the 33 Raptor engines did not fire. The launch computer automatically shut down the remaining 29 engines, keeping the vehicle anchored to the pad and preventing a catastrophic launch.

The launch team immediately began draining the rocket’s propellant. Elon Musk later said two engines will be replaced “to be confident of a good flight” and hinted that the next attempt could occur early next week.

The flight was slated to carry twenty of SpaceX’s newest Starlink satellites, which would have been released during an hour‑long sub‑orbital trajectory. Neither the booster nor the spacecraft were intended for recovery; both would have splashed down in the Gulf of Mexico.

Why it matters

The abort demonstrates that Starship’s automated safety systems functioned as designed, averting a potentially dangerous failure on the launch pad. However, each delay pushes back SpaceX’s broader schedule for Starlink deployment and for future lunar and Mars missions that rely on Starship’s heavy‑lift capability. The incident also provides valuable data on engine reliability, informing design tweaks that could improve the rocket’s overall success rate.

+ Pros
  • The abort confirms the effectiveness of the launch‑abort system.
  • Engine‑failure data can be used to refine the Raptor design.
  • Identifying the issue now avoids a more costly failure during flight.
Cons
  • Schedule slips may affect downstream Starlink launch contracts.
  • Additional engine replacements increase program costs.
  • Repeated aborts could erode confidence in Starship’s readiness.

How to think about it

Treat the abort as a data point rather than a verdict on Starship’s viability. Track the specific engine that failed, compare its performance metrics to previous flights, and watch how SpaceX incorporates the findings into the next test. For enthusiasts, weigh the technical progress against schedule shifts, and consider the broader context of how often new launch systems experience similar setbacks before achieving operational reliability.

FAQ

What caused the engine failure that led to the abort?+
Telemetry indicated that four of the 33 Raptor engines did not ignite, triggering the automatic shutdown of the remaining engines to keep the vehicle secured to the pad.
When is the next Starship test flight expected?+
Elon Musk suggested the most probable launch timing is early next week, pending engine replacements and final safety checks.
How will the abort affect the planned Starlink satellite deployment?+
The twenty new Starlink satellites slated for this flight will be delayed until a successful launch can be completed, pushing back the expansion of the constellation.
Sources
  1. 01SpaceX Starship launch aborted on the pad at the last moment
  2. 02SpaceX Starship launch aborted on the pad at the last moment
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