Live coverage: Delta 2 launches

SpaceX rolled out a Falcon 9 rocket to launch pad 39A early Tuesday for a prelaunch hotfire test before this weekend’s liftoff with a classified payload for the National Reconnaissance Office, the U.S. government spy satellite agency. The static fire test was completed at 3:02 p.m. (1902 GMT).

A replay of the United Launch Alliance Delta 4 rocket launching on the NROL-45 satellite-deployment mission for the National Reconnaissance Office from Vandenberg Air Force Base, California.

A United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 11:11 a.m. EDT (1511 GMT) today to boost Orbital ATK’s commercially-operated Cygnus cargo ship toward a Saturday rendezvous with the International Space Station. Follow the ascent in our live journal.