Q&A with Tory Bruno, president and chief executive of ULA

Watch a replay of the United Launch Alliance Delta 4 rocket launching from Vandenberg Air Force Base in California, hauling into orbit a new eye in the sky for the National Reconnaissance Office.

The Air Force’s miniature space shuttle and its ride to orbit have been joined together inside an assembly building at Cape Canaveral in preparation for launch May 20.

The most powerful version of United Launch Alliance’s Atlas 5 rocket lifted off from Cape Canaveral at 10:30 a.m. EDT (1430 GMT) today on a three-hour flight to deploy a U.S. Navy mobile communications satellite into orbit. Follow the mission in our live journal.