Photos: Delta 4 lights up the sky for night owl launch

Completing a fast-track, three-hour pursuit of the International Space Station, a Russian Progress supply ship overcame a last-minute misalignment and autonomously linked up with with orbiting research complex Thursday with nearly three tons of fuel, food and supplies.

The United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 8:37 a.m. EDT (1237 GMT) today to deploy a classified satellite in service to the national security of the United States. Follow the mission in our live journal.

A nearly 180-foot-tall (54.8-meter) Ariane 5 rocket rolled out of its integration hangar to the ELA-3 launch zone Wednesday at the Guiana Space Center in South America, moving into position for liftoff Thursday with two geostationary communications satellites.