Live coverage: Atlas 5 countdown and launch journal

The commercial Cygnus freighter carrying over 7,000 pounds of food, supplies and science experiments completed a flawless rendezvous with the International Space Station on Saturday morning. It was captured by the robotic arm at 6:51 a.m. EDT (1051 GMT).

United Launch Alliance said Monday it did not submit a proposal in a competition to launch a U.S. Air Force GPS navigation satellite, apparently relinquishing the contract to rival SpaceX, the only other company certified to launch the mission.

The last flight of the single-core variant of United Launch Alliance’s Delta 4 rocket lifted off at 9:06 a.m. EDT (1306 GMT) Thursday from Cape Canaveral Air Force Station, Florida. The 207-foot-tall launcher carried a GPS navigation satellite into orbit for the U.S. Air Force.