Atlas/Cygnus pre-launch news conference

The U.S. Navy’s Mobile User Objective System communications satellite No. 5 was encapsulated in the payload fairing at Astrotech on June 4 and then hoisted atop the United Launch Alliance Atlas 5 rocket at Complex 41 on June 13.

A United Launch Alliance Delta 4-Heavy rocket blasted off from Cape Canaveral at 1:51 p.m. EDT (1751 GMT) today to haul a classified satellite into space for the U.S. National Reconnaissance Office. Follow the mission in our live journal.

Five years after winning $1 billion from NASA to mount the first U.S. asteroid sample return mission, scientists and engineers will get their last look at the OSIRIS-REx spacecraft this week as it is closed up inside the nose cone of an Atlas 5 rocket for launch in September.