Video: Atlas 5 rocket launches space station cargo mission

The United Launch Alliance Atlas 5 rocket with the NROL-52 spacecraft aboard moved to the launch pad this morning for liftoff Saturday to serve the national interest. Liftoff is scheduled for 3:31 a.m. EDT (0731 GMT).

When the countdown hit zero last Friday and the engines powering a previously flown Falcon 9 first stage roared to life for takeoff, the four astronauts strapped into a SpaceX Crew Dragon some 21 stories up started laughing.

Seven small satellites from Canon Electronics, Planet and In-Space Missions launched from New Zealand on Rocket Lab’s Electron rocket Saturday at 5:19:36 p.m. EDT (2119:36 GMT), but the payloads and launch vehicle were lost after a problem during the second stage burn.