SpaceX called off a launch attempt Sunday after detecting a leak in the plumbing that flows super-cold liquid oxygen propellant into the rocket. Technicians fixed the problem in time for another countdown 24 hours later, but the risk of lightning in the area prevented Starship from lifting off Monday evening.

SpaceX's Super Heavy-Starship rocket, the most powerful in the world, returns to flight after multiple failures.

Could humans be heading to Mars in the 2030s? Here's how Elon Musk and SpaceX plan to launch Starship on a mission to colonize the Red Planet.