Starship, the world’s most powerful rocket, flew farther and faster than ever before during its third test launch Thursday, although it was eventually lost as it re-entered the atmosphere over the Indian Ocean, SpaceX said.

Lift-off from the company’s Starbase in Boca Chica, Texas came at 8:25 am local time (1325 GMT) and was carried live on a webcast watched by millions on social media platform X.

The sleek mega rocket is vital to NASA’s plans for landing astronauts on the Moon later this decade — and SpaceX CEO Elon Musk’s hopes of eventually colonizing Mars.

“Congrats to @SpaceX on a successful test flight!” tweeted NASA administrator Bill Nelson following the mission.

Scrutiny was high for Thursday’s test flight after two prior attempts ended in spectacular explosions — all part of what the company says is an acceptable cost in its rapid trial-and-error approach to accelerate development.

Designed to eventually be fully reusable, Starship stands 397 feet (121 meters) tall with both stages combined — 90 feet taller than the Statue of Liberty.

Its Super Heavy booster produces 16.7 million pounds (74.3 Meganewtons) of thrust, almost double that of the world’s second most powerful rocket, NASA’s Space Launch System — though the latter is now certified, while Starship is still a prototype.

Starship’s third launch test in its fully stacked configuration was its most ambitious yet and the company said it was able to meet many of its objectives.

These included opening and closing Starship’s payload door to test its ability to deliver satellites into orbit, and its first atmospheric re-entry.

High-definition footage from an onboard camera showed Starship coasting in space, with the curve of the Earth visible in the background. It hit a top speed of more than 26,000 kilometers per hour (16,000 mph) and achieved an altitude of more than 200 kilometers above sea level.

Starship flew halfway around the globe, then began its descent over the Indian Ocean, with engineers cheering as its heat shield glowed red hot.

But ground control stopped receiving signals 49 minutes into the flight, and declared the vessel “lost” — probably destroyed — before it could achieve a planned hard splashdown.

The lower-stage booster also failed to make a successful water landing, and as a result, the Federal Aviation Administration said it was opening a “mishap” investigation.