Q&A with Steve Skladanek, president of Lockheed Martin Commercial Launch Services

The 200th Atlas-Centaur rocket, history some 52 years in the making, will blast off Tuesday from Cape Canaveral to deliver a U.S. Navy mobile communications satellite into orbit.

Spaceflight Now Members can watch a time-lapse replay of the Atlas 5 rocket’s rollout to pad 41 at Cape Canaveral Air Force Station before the launch of the U.S. Air Force’s AEHF 5 communications satellite.

The first images beamed back to Earth by NASA’s OSIRIS-REx spacecraft after it briefly landed an asteroid buoyed expectations Wednesday that the probe collected enough samples to meet the mission’s minimum requirement for return to Earth.