Photos: Thursday’s Atlas 5 rollout to launch pad

The rollout operation on Tuesday followed a day of evaluations using Boeing’s weight and center-of-gravity machine to determine the final measurements on the spacecraft. Launch is still targeting May 6 at 10:34 p.m. EDT (0234 UTC).

The Centaur upper stage destined to send Boeing’s CST-100 Starliner crew capsule into orbit on its first unpiloted test flight next year has arrived at Cape Canaveral after a sea journey aboard United Launch Alliance’s Mariner transport ship.

A United Launch Alliance Delta 4 rocket went through a practice countdown and fueling exercise today to prepare for its Dec. 7 liftoff to deliver a U.S. military communications satellite into space.