Video: Change of command aboard International Space Station

Shuttle veteran Scott Kelly first heard about NASA’s plans to send an astronaut to the International Space Station for nearly a full year shortly after he completed his third space flight in 2011, a 159-day stay aboard the orbital lab complex.

Watch the pre-launch news conference held Monday, March 21 at NASA’s Kennedy Space Center to preview liftoff of the Orbital ATK commercial Cygnus cargo ship aboard a United Launch Alliance Atlas 5 rocket for the International Space Station.

Live coverage from NASA Television for the launch of a Russian Progress cargo ship to the International Space Station. Liftoff from the Baikonur Cosmodrome, in Kazakhstan is scheduled for 0709 GMT (3:09 a.m. EDT).