SpaceX's prototype Starship exploded over the Indian Ocean on Tuesday, capping another bumpy test flight for the rocket central to billionaire Elon Musk's dream of colonizing Mars.

A stunning blue and white spiral spotted in skies across Europe late Monday was created by frozen fuel tumbling from a SpaceX rocket, according to weather forecasters and scientists.

Elon Musk's SpaceX is now aiming for Thursday to conduct the next test flight of its massive Starship rocket, following a last-minute cancellation on Monday.

Elon Musk's SpaceX called off the latest test flight of its Starship rocket just before its scheduled launch on Monday, citing an unspecified problem with the behemoth spacecraft.