Video: NROL-37 payload and Delta 4-Heavy rocket prepped for launch

Propelled by five strap-on solid rocket boosters and a Russian-made kerosene-fueled RD-180 main engine, a United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral Air Force Station on March 26 with the U.S. military’s sixth AEHF communications satellite.

SpaceX’s Falcon 9 rocket took off from the historic seaside launch pad 39A at NASA’s Kennedy Space Center on Monday, powered a classified NRO spy satellite into space, then the launcher’s first stage descended to a vertical landing at nearby Cape Canaveral Air Force Station.

A United Launch Alliance Delta 4-Heavy rocket lifted off from Vandenberg Air Force Base in California at 1:47 p.m. PDT (4:47 p.m. EDT; 2047 GMT) Monday with a classified satellite for the National Reconnaissance Office, the U.S. government’s spy satellite agency.