SpaceX successfully landed its giant Starship, but it exploded a few minutes later

SpaceX's Starship SN10 rocket prototype explodes after a successful liftoff and soft landing at the company's Boca Chica, Texas launch site on March 3. This view was provided by (Image credit: via YouTube)

Here's the good news: SpaceX landed a giant Starship for the first time Wednesday (March 3), after reaching an altitude of 6.2 miles (10 kilometers). The bad news: It exploded 8 minutes later.

After two similar tests ended with Starships SN8 and SN9 failing to slow down enough before landing and exploding on impact, SpaceX tried a new technique for the landing of SN10. All three rocket engines at the bottom of the 160-foot-tall (49 meters), 30-foot-wide (9 m) machine ignited as the rocket righted itself before landing; the rocket also was able to slow down enough to make a soft landing. On SpaceX's YouTube feed, John Insprucker, the company's principal integration engineer, declared the landing a success and closed the stream.

He emphasized, as SpaceX often does, that the success of the test is determined by data collected, not a perfect landing.

It was Starship's most impressive achievement to date, and immediately demonstrated how far the project — intended to one day reach the moon and Mars — has come even in the last few months of work in Boca Chica, Texas.

But as the dust cleared, it became clear that SN10 had crunched a bit on impact, sitting on the pad with a pronounced, awkward lean. A fire broke out at the base, and video streams from both NASA Spaceflight and Lab Padre showed a robotic fire extinguisher unsuccessfully battling the flames.

Eight minutes after touchdown, about 14 minutes and 45 seconds after takeoff, there was a powerful explosion somewhere inside the rocket, which uses combustible methane as propellant. The heavy metal structure was hurled into the air a second time by the blast.

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As of this writing, it's still not clear precisely what caused the explosion.

Originally published on Live Science.

Rafi Letzter
Staff Writer
Rafi joined Live Science in 2017. He has a bachelor's degree in journalism from Northwestern University’s Medill School of journalism. You can find his past science reporting at Inverse, Business Insider and Popular Science, and his past photojournalism on the Flash90 wire service and in the pages of The Courier Post of southern New Jersey.