Live video of the docking of a Progress cargo ship with the space station

Officials from NASA, Orbital ATK, Wallops Flight Facility and the Commonwealth of Virginia preview Sunday night’s flight of the Antares rocket during the pre-launch news conference held on the eve of liftoff.

This is video footage documenting stacking activities for the two-stage United Launch Alliance Atlas 5 rocket, standing 194 feet tall, to boost the commercial Orbital ATK Cygnus cargo freighter to the International Space Station. Activities occurred at Cape Canaveral’s Vertical Integration Facility.

Two veteran NASA astronauts rocketed away from the Kennedy Space Center in Florida on Saturday to begin a test flight of a new commercial spaceship designed, built and owned by SpaceX.