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Live coverage: Atlas 5 countdown and launch journal

A United Launch Alliance Atlas 5 rocket has blasted off to deploy the Navy's fourth MUOS satellite that will expand coverage to encompass the globe with mobile communications. Launch from Cape Canaveral occurred at 6:18 a.m. EDT (1018 GMT).

News Headlines

  • srbs
    A replay of the United Launch Alliance Atlas 5 rocket launching the Navy's Mobile User Objective System communications satellite No. 4 from Cape Canaveral, Florida.
  • 21052463676_0b344eb81b_o
    Three space fliers rocketed away from the Baikonur Cosmodrome in Kazakhstan on Wednesday, setting off in pursuit of the International Space Station to swap out Soyuz lifeboats for the research lab's one-year crew. Check out imagery of the late morning liftoff.
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    A Russian Soyuz spacecraft streaked into orbit Wednesday carrying a crew of three on a two-day flight to the International Space Station. Their mission: to deliver a fresh ferry craft to the lab complex that will be needed next March to carry two station crew members back to Earth after nearly a year in orbit.
  • 20150902-Feature-Image-Atlas-Quick
    A United Launch Alliance Atlas 5 rocket has blasted off to deploy the Navy's fourth MUOS satellite that will expand coverage to encompass the globe with mobile communications. Launch from Cape Canaveral occurred at 6:18 a.m. EDT (1018 GMT).
  • 20150902-Feature-Image-Soyuz
    A Soyuz rocket blasted off Wednesday with a three-man crew heading for the International Space Station, including the first astronaut of Danish nationality. The trio launched from the Baikonur Cosmodrome at 0437:43 GMT (12:37:43 a.m. EDT).
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    The beginning of November will be the earliest SpaceX's Falcon 9 rocket can resume launching after a June 28 failure blamed on a deficient structural support brace inside the the vehicle's second stage, a SpaceX executive said Monday.
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    A Russian Soyuz booster rolled out of a hangar at the historic Baikonur Cosmodrome and rode a rail car to its launch pad Monday, setting up for Wednesday's launch with a three-man crew hailing from Russia, Denmark and Kazakhstan.
  • nh_kbo
    A frozen fragment left over from the formation of the solar system is set to become the most distant object ever explored by a human-built space probe, scientists working on the New Horizons mission said Friday.
  • roll_front
    Delivering two-and-a-half million pounds of ground-shaking thrust at takeoff, more than any rocket flying from Cape Canaveral these days, the mighty vehicle was rolled from its assembly building to the launch pad Monday for Wednesday's early morning blastoff.
  • proton_photos_feature
    Russia's Proton rocket returned to flight Friday, blasting off for the first time since a May launch mishap. Relive Friday's launch with a video replay and photos of the daytime liftoff from the Baikonur Cosmodrome.