Live coverage: Falcon 9 rocket lifts off from California

These photographs span activities in March as the news media got an up-close viewing of the Orbital ATK commercial Cygnus cargo ship, its placement aboard a mobile transporter and delivery of the craft to the United Launch Alliance Atlas 5 rocket assembly building for hoisting and mating. Liftoff is scheduled for April 18.

The next Delta 4-Heavy rocket was raised vertical Friday at Cape Canaveral, signaling the start of a comprehensive series of pre-flight tests before liftoff next year with a top secret U.S. government spy satellite.

Rollout of the Atlas 5 rocket from the Vertical Integration Facility to the launch pad at Complex 41 occurred at 10 a.m. on Monday. Liftoff is planned for Tuesday night to deliver the Cygnus resupply ship into orbit en route to the International Space Station.