Watch as SpaceX test-fires Falcon 9 ahead of Starlink launch (members only)

SpaceX test-fired a Falcon 9 rocket Friday at Cape Canaveral in preparation for liftoff as soon as Sunday with the company’s fifth batch of Starlink broadband satellites.

SpaceX’s proposal to land astronauts on the moon using the company’s reusable Starship vehicle could be “game-changing” for space exploration, but comes with risks and complexity that “threaten the schedule viability” to achieve NASA’s goal of returning crews moon by the end of 2024, agency officials said.

Three days after high winds scrubbed a launch attempt Friday, Rocket Lab launched an Electron rocket with four satellites from New Zealand at 1212 GMT (8:12 a.m. EDT) Monday.