Video: Change of command aboard International Space Station

An all-veteran crew of four astronauts jetted into NASA’s Kennedy Space Center Friday for the final few days of rehearsals, briefings, and relaxation before blasting off Thursday bound for a six-month stint on the International Space Station.

Space station flight engineer Jeff Williams will send commands Thursday to pump air into an experimental soft-sided module developed by commercial space habitat builder Bigelow Aerospace, expanding the structure to four times its current size in a stepping stone to future orbital destinations. Live video begins at 5:30 a.m. EDT (0930 GMT).

NASA astronaut Chris Cassidy’s family will be watching remotely from halfway around the world when he blasts off April 9 from Kazakhstan to begin a six-month expedition on the International Space Station.