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

The International Space Station crew releases the Cygnus OA-7 commercial cargo ship from the Canadian robotic arm to begin free-flight away from the lab complex, completing 43-day visit that delivered supplies, food and science gear.

Continuing a run of military satellite deployments this summer, United Launch Alliance has begun stacking the Atlas 5 rocket that will boost the Navy’s next mobile communications craft.

Launching the commercial WorldView 4 Earth-imaging satellite for DigitalGlobe, a United Launch Alliance Atlas 5 rocket thunders away from California’s Vandenberg Air Force Base today at 10:30 a.m. local time (1:30 p.m. EST; 1830 GMT).