The SpaceX Starship rocket exploded about four minutes after launch on Thursday after five of its 33 Raptor engines failed and the spacecraft began to spin. It's not yet known what went wrong and it ...

Starship is the centerpiece of Musk's vision of sending the first humans to Mars, and is also critical in NASA's plans to return astronauts to the moon's surface for the first time in five decades.

NASA is going back to the moon and it has the rocket to do it — the SLS. Meanwhile, Elon Musk and SpaceX are hard at work on their own giant Starship rocket, meant to one day bring humans to Mars. So ...