The United Launch Alliance Atlas 5 rocket unleashes two million pounds of thrust at 7:19 p.m. to blast off from Vandenberg Air Force Base in California on the NROL-35 mission.
Credit: Pat Corkery/United Launch Alliance
Atlas 5
Photos: Atlas 5 rocket assembled to launch the S.S. John Glenn
A United Launch Alliance Atlas 5 rocket, flying in its basic two-stage configuration with no strap-on solids, was stacked aboard a mobile launch platform at Cape Canaveral’s Vertical Integration Facility on Feb. 22 and 23 in preparation to send Orbital ATK’s S.S. John Glenn cargo ship into orbit for the International Space Station.