Atlas 5 NROL-55 launch full broadcast

Watch the Jason-3 Mission Science Briefing held at Vandenberg Air Force Base, California, on January 15, 2016. (Membership required.)

Poised for its one and only satellite launch of the year, the National Reconnaissance Office will conduct a hush-hush flight Thursday using a United Launch Alliance Atlas 5 rocket from California.

Watch the pre-launch news conference held Thursday at NASA’s Kennedy Space Center to preview liftoff of the agency’s TDRS-M data relay satellite aboard a United Launch Alliance Atlas 5 rocket from Cape Canaveral.