Musk—who has a history of setting unrealized goals for his companies—says he wants to send humans to Mars by 2029, though he says 2031 may be more likely.

SpaceX has blown up another Starship mega rocket on a test flight. Nearly two months after an explosion sent flaming debris raining down on the Turks and Caicos, SpaceX launched another mammoth Starship rocket on Thursday, but lost contact minutes into the test flight as the spacecraft came tumbling down and broke apart.

Standing 403 feet (123 meters) tall – about 100 feet taller than the Statue of Liberty – Starship is designed to eventually be fully reusable