Live coverage: Dragon cargo craft arrives at space station

This is the post-launch news briefing from NASA’s Wallops Flight Facility held after the successful return to flight by the Orbital ATK Antares rocket that delivered the Cygnus cargo ship into space.

A Russian Proton rocket launched at 0345 GMT Thursday (11:45 p.m. EDT Wednesday) from the Baikonur Cosmodrome in Kazakhstan with the EchoStar 21 communications satellite, a hefty 7.6-ton telecommunications station designed to support a mobile network in Europe. Managed by U.S.-based International Launch Services, the mission will take more than nine hours to deliver EchoStar 21 into a geostationary transfer orbit using five burns of the Breeze M upper stage engine.

A commercial cargo capsule owned by SpaceX concluded a month-long resupply trip to the International Space Station on Saturday, wrapping up the 13th round-trip flight to the station by a Dragon spacecraft with an on-target splashdown in the Pacific Ocean west of Baja California.