Video: Change of command aboard International Space Station

An all-new SpaceX Falcon 9 rocket fired its engines Friday night on launch pad 40 at Cape Canaveral, the opening act in a busy weekend of SpaceX launch preps leading up to a pair of blastoffs Sunday and Tuesday from California’s Central Coast and Florida’s Space Coast, respectively.

Orbital ATK’s seventh Antares rocket stands ready for launch with a Cygnus supply ship Saturday on a two-day flight to the International Space Station.

Two Russian cosmonauts and a NASA astronaut strapped into their Soyuz spacecraft Friday and moved the capsule to a different docking port on the International Space Station, clearing the way arrival of a fresh crew next month.