Watch NASA’s STP-2 technology briefing

Ready for a resupply run to the International Space Station, a SpaceX Falcon 9 rocket was raised vertical at Cape Canaveral’s Complex 40 launch pad Wednesday ahead of a planned liftoff with more than 5,700 pounds of science experiments and crew supplies.

An Atlas 5 rocket rumbled into space Saturday evening after lifting off from Cape Canaveral with multiple U.S. Air Force communications and tech demo satellites, and brilliant clear skies made for ideal viewing conditions shortly before sunset.

The United Launch Alliance Atlas 5 rocket was rolled out to the launch pad at Cape Canaveral’s Complex 41 on Wednesday morning, emerging from the Vertical Integration Facility assembly hangar where the two-stage rocket was put together.