SpaceX wants to put the two-stage rocket's massive booster through its paces. On Sunday, it postponed the launch "to troubleshoot an issue with ground systems."

SpaceX delayed a critical test flight of its massive Starship rocket roughly half an hour before liftoff on Sunday, saying it needed to fix a liquid oxygen leak and that it would aim for another launch on Monday night.

Tesla billionaire Elon Musk was mocked after his latest SpaceX Starship launch failed within 40 seconds. The failed test marked the 10th instance of Musk's company's inability to get the spacecraft beyond Earth's atmosphere.