Gallery: Antares rocket explodes

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.

NASA has delayed the award of new contracts for cargo transportation services between Earth and the International Space Station, and eliminated an uncrewed version of Boeing’s human-rated CST-100 Starliner capsule from the competition, officials said Thursday.