Atlas 5 NROL-55 launch full broadcast

A United Launch Alliance Atlas 5 rocket launched at 5:02 p.m. EST (2202 GMT) Thursday from Cape Canaveral with NOAA’s GOES-S weather satellite, the second in a series of upgraded observatories destined to cover the western United States and the Pacific Ocean.

A SpaceX Falcon 9 rocket lifted off Tuesday with five communications satellites for Iridium’s commercial voice, data relay, and tracking network, and a pair of U.S.-German research craft to probe Earth’s climate and water cycle. Launch from Vandenberg Air Force Base, California, occurred at 12:47 p.m. PDT (3:47 p.m. EDT; 1947 GMT).

United Launch Alliance’s Delta 4-Heavy rocket lifted off at 11:10 a.m. PST (2:10 p.m. EST; 1910 GMT) Saturday from Vandenberg Air Force Base, California, after a month-long delay to troubleshoot a hydrogen leak in one of its boosters. The heavy-lifter was on a mission to send a U.S. government spy satellite into orbit.