NASA astronauts Butch Wilmore and Suni Williams are set to splash down off the coast of Florida on Tuesday just before 5 p.m. CDT.

NASA's stuck astronauts are heading home now that a replacement crew has arrived at the International Space Station

SpaceX's Falcon 9 rocket lifted off at 7:03 p.m. ET (2303 GMT) from NASA's Kennedy Space Center in Florida carrying four astronauts who will replace Wilmore and Williams, both of whom are veteran NASA astronauts and retired U.