Live coverage: Cygnus supply ship arrives at space station

SpaceX’s second Falcon 9 flight of the year lifted off Jan. 31 from Cape Canaveral with GovSat 1, a U.S.-built satellite funded by SES and the government of Luxembourg to provide secure communications for military and civil defense authorities.

A huge U.S.-built, Canadian-owned communications satellite weighing 15,600 pounds, the heaviest spacecraft of its kind ever launched, is mounted to a Falcon 9 rocket for liftoff early Sunday from Cape Canaveral on a heavy-lifting mission that previously would have required SpaceX to throw away the launcher’s first stage booster.

NASA and SpaceX officials briefed the media Wednesday on the planned launch of a Falcon 9 rocket and Dragon cargo capsule on a resupply flight to the International Space Station.