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.

Suni Williams and Butch Wilmore returned to Earth in a SpaceX capsule after problems with a Boeing vehicle set in motion an unexpected extended stay on the International Space Station.