Video: Change of command aboard International Space Station

These video replays show the liftoff of the Soyuz rocket carrying Oleg Kononenko, David Saint-Jacques and Anne McClain away from the Baikonur Cosmodrome in Kazakhstan, toward a rendezvous with the International Space Station around six hours later.

SpaceX’s first Crew Dragon spacecraft, fixed to the forward end of a Falcon 9 rocket, emerged Thursday from the company’s hangar at the Kennedy Space Center in Florida for the quarter-mile journey to its launch mount at pad 39A, where liftoff is scheduled early Saturday on a critical test flight before astronauts strap into the ship later this year.

A record number of would-be space travelers have applied to join NASA’s corps of astronauts to fly aboard the International Space Station, the Orion crew capsule, or commercial spaceships built by Boeing and SpaceX, the space agency announced Friday.