SpaceX is gearing up to send another batch of Starlink satellites into low-Earth orbit from Florida on Tuesday afternoon.When is the SpaceX rocket launch?What we knowA Falcon 9 rocket is set to blast off from the Cape Canaveral Space Force Station,

Expect a SpaceX Falcon 9 rocket to take flight this afternoon just before 4 p.m. from Florida's Space Coast — a couple of hours before Boeing Starliner astronauts Butch Wilmore and Suni Williams should splash down off the Sunshine State after their unexpectedly long stay aboard the International Space Station.