Gallery: Antares rocket explodes

Orbital ATK has ordered another Atlas 5 rocket to launch a second commercial Cygnus cargo craft for the International Space Station.

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.

Orbital ATK’s Cygnus cargo freighter loaded with over 5,000 pounds of crew provisions, equipment and science gear arrived at the International Space Station.