Snapshots from Atlas 5 launch

Orbital ATK plans to launch its next two commercial resupply missions to the International Space Station on Atlas 5 rockets, grabbing a launch slot in March after a next-generation U.S. weather satellite was delayed, industry officials said.

The constellation-building Atlas 5 rocket from United Launch Alliance successfully deployed the fifth communications spacecraft for the Navy’s Mobile User Objective System today to form a new rugged smartphone network for the U.S. military.

These narrated videos show the pre-launch preparations that readied the United Launch Alliance Atlas 5 rocket and the Orbital ATK Cygnus commercial cargo-delivery spacecraft for flight and rolling to Complex 41 for liftoff to the International Space Station.