Snapshots from Atlas 5 launch

The rollout of the 322-foot-tall rocket took fewer than 12 hours after first motion, which occurred at about 12:20 a.m. EDT (0420 UTC). NASA hopes to launch the crewed test flight to the Moon no earlier than April 1.

Four astronauts strapped into their SpaceX Crew Dragon spacecraft Monday and rode along for an automated maneuver to relocate the capsule to a different docking port outside the International Space Station. The relocation maneuver, which concluded with a link-up with the new docking port 7:08 a.m. EDT (1108 GMT), was the first of its kind for a Crew Dragon spacecraft.

The United Launch Alliance Atlas 5 rocket, standing 194 feet tall and and weighing 720,000 pounds, generates 860,000 pounds of thrust from its main engine to launch the Orbital ATK Cygnus cargo ship on the OA-7 mission to the International Space Station.