Live coverage: SpaceX launches another batch of Starlink satellites

With five side-mounted solid rocket boosters for added power, a United Launch Alliance Atlas 5 rocket successfully deployed the U.S. Navy’s fifth MUOS mobile communications satellite.

Launch of an Atlas 5 rocket from Cape Canaveral with a U.S. Air Force infrared surveillance satellite was scrubbed Thursday evening after engineers encountered a balky valve associated with the first stage’s liquid oxygen system.

Riding nearly a million pounds of thrust, NASA astronaut Chris Cassidy and Russian crewmates Anatoly Ivanishin and Ivan Vagner rocketed into orbit April 9 from the Baikonur Cosmodrome en route to the International Space Station.