The largest, most powerful launch vehicle ever built is meant to be a key part of SpaceX’s plans to send humans to Mars—and NASA’s plans to return astronauts to the moon, too

After back-to-back Starship upper stage failures, SpaceX on Tuesday again launched the world's most powerful rocket, but faced new problems.

SpaceX's Starship successfully separated from its Super Heavy rocket booster and reached orbit Tuesday evening, but later began spinning and made an