Photos: Delta 4 lights up the sky for night owl launch

After several delays to wait for improved weather, SpaceX sent a Falcon 9 rocket into space Saturday from California’s Central Coast with 51 small satellites, payloads, and orbital transfer vehicles from customers around the world.

The United Launch Alliance Atlas 5 rocket, standing 194 feet tall and and weighing 950,000 pounds, unleashes 1.5 million pounds of thrust from its main engine and two side-mounted boosters at 8:37 a.m. EDT today to launch the National Reconnaissance Office’s NROL-61 satellite from Cape Canaveral.

NASA launch commentator George Diller called the Atlas 5 with Cygnus, his final liftoff as the voice of launch control before retirement next month. He has worked at the Kennedy Space Center for nearly four decades and served as the commentator for such memorable launches as Hubble, Cassini, Mars Pathfinder, the Spirit, Opportunity and Curiosity rovers and the final space shuttle mission.