Video: Change of command aboard International Space Station

Astronaut Scott Kelly, 143 days into a planned 341-day stay aboard the International Space Station, urged lawmakers Monday to restore full funding to NASA’s commercial crew program to avoid expected launch delays and continued sole reliance on Russia for transportation to and from the International Space Station.

This is the pre-launch news conference held Dec. 2 at NASA’s Kennedy Space Center for liftoff of the Orbital ATK commercial Cygnus cargo ship aboard a United Launch Alliance Atlas 5 rocket for the International Space Station.

Taking aim on the International Space Station, nine kerosene-burning rocket engines powered a SpaceX Falcon 9 launcher into a clear sky over Florida’s Space Coast on Friday night to begin the final flight of the first version of the company’s Dragon cargo ship.