SpaceX's Starship V3 Completes First Flight — but Booster Engine Failures Raise Questions

SpaceX launched Starship V3 on May 22, 2026, from Pad 2 at Starbase, Texas — the twelfth Starship test flight and the first since October 2025. The 124-meter rocket, powered by 33 Raptor 3 engines producing a combined 9,240 metric tons of thrust, is the most powerful rocket ever to leave the ground. For SpaceX, the timing matters: the company filed an S-1 with the SEC on May 20, disclosing $3 billion in R&D; spending and a $4.9 billion loss in 2025, with a June IPO on the horizon.

What flew

V3 is a substantial step up from V2. It's 1.5 meters taller, and the new integrated structure eliminates the separate interstage ring that connected the two stages in V2 — a weight and complexity reduction baked into the design from the start. SpaceX calls the approach "fault-tolerant": build the system to keep flying even when individual components fail.

That philosophy was tested almost immediately. One of the 33 Raptor 3 engines on the Super Heavy booster shut down during ascent. Then, during the boostback burn — the maneuver that slows and redirects the booster for landing — multiple additional engines failed in cascade. The booster could not complete a controlled splashdown and was lost in the Gulf of Mexico. Whether these failures reflect a Raptor 3 design issue or an anomaly specific to this test article is still under investigation, per KeepTrack.

Upper stage holds up

The Ship 39 upper stage lost one of its six vacuum Raptor engines during the climb, but the flight computer autonomously extended the burn on the remaining five to compensate. The ship reached its suborbital trajectory, deployed 20 mock Starlink satellites plus two imaging satellites, and splashed down in the Indian Ocean as planned. Spokesman-Review reports that Ship completed controlled reentry under maximum-stress maneuvers and arrived intact.

The stakes

NASA Administrator Jared Isaacman attended the launch in person — a visible signal of how much the Artemis program depends on Starship. NASA's lunar missions are counting on V3 meeting a 2028 qualification target, and CNN noted that the autonomous engine compensation held up through the most demanding phases of flight.

The booster loss was planned from the start — no tower catch was attempted on V3's debut — but the severity of the engine cascade during boostback was beyond what SpaceX expected. Engineers are conducting a weeks-long root-cause assessment. Until that analysis is complete, it's an open question whether Raptor 3 is ready for the high flight cadence SpaceX needs ahead of both its IPO and NASA's clock.