An Atlas 5 successfully launched a Cygnus spacecraft April 18 carrying three and a half tons of cargo for the International Space Station.
The United Launch Alliance Atlas 5 401 lifted off on schedule at 11:11 a.m. Eastern from Space Launch Complex 41 at Cape Canaveral, Florida, after a countdown free of any major issues.
The Cygnus spacecraft separated from the Centaur upper stage 21 minutes after launch in low Earth orbit.
"Everything looks very nominal," said Vern Thorp, program manager for commercial missions at ULA, in an interview on NASA Television shortly after spacecraft separation. The Atlas performed "slightly above nominal" on the flight, he said, and the Centaur upper stage placed the Cygnus into the planned orbit. See Full Story
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