SpaceX plans on Thursday to attempt another launch of Starship, the world's most powerful rocket that is vital to NASA's plans for landing astronauts on the Moon later this decade -- and Elon Musk's hopes of eventually colonizing Mars. But the clock is ticking down for SpaceX to be ready for NASA's planned return of astronauts to the Moon in 2026, using a modified Starship as the lander vehicle.
