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Atlas 5 rocket gains approval to launch again after issue on last flight diagnosed
United Launch Alliance has granted "flight clearance" for its workhorse Atlas 5 rocket to resume satellite deployments after linking an errant valve with the fuel usage crunch on its most recent mission and tweaking subsequent vehicles.
Photos: Navy satellite encapsulated, mated to Atlas 5
The U.S. Navy's Mobile User Objective System communications satellite No. 5 was encapsulated in the payload fairing at Astrotech on June 4 and then hoisted atop the United Launch Alliance Atlas 5 rocket at Complex 41 on June 13.
Cygnus leaves space station and conducts NASA fire experiment in microgravity
Bidding farewell to the International Space Station today, the commercial Cygnus cargo ship separated to a safe distance before igniting an intentional fire in microgravity like never before, all in the name of science.
Live video: Cygnus freighter to depart the space station Tuesday
Concluding 80 days attached the International Space Station, the commercial Cygnus cargo ship will be detached to fly away Tuesday for an unprecedented onboard fire experiment before re-entering the atmosphere next week.
Photos: More shots of Saturday’s Delta 4-Heavy rocket Launch
Departing on three pillars of fire, the United Launch Alliance Delta 4-Heavy rocket lifted off at 1:51 p.m. from Cape Canaveral for a classified national security satellite deployment.
Photos: Spectacular start to Delta 4-Heavy’s satellite deployment mission
The United Launch Alliance Delta 4-Heavy rocket fired away from Cape Canaveral at 1:51 p.m. EDT today to deploy a covert surveillance satellite for the U.S. National Reconnaissance Office.
Recap story: Triple-barrel Delta 4-Heavy launches national security satellite
Two million pounds of firepower successfully launched a behemoth Delta 4-Heavy rocket and a top-secret eavesdropping surveillance satellite into space Saturday, embarking on a taxing climb directly into geosynchronous orbit 22,300 miles above the Earth to deploy one of the pinnacles of U.S. intelligence-gathering.
Photos: Delta 4-Heavy launch as seen from press site
Members of the news media — reporters and photographers — witnessed the United Launch Alliance Delta 4-Heavy rocket lifted off from the ITL Causeway on Cape Canaveral Air Force Station, about 1.7 miles from the pad.
Video: America’s most capable rocket ascends from Cape Canaveral on NROL-37
The United Launch Alliance Delta 4-Heavy rocket, standing 235 feet tall and weighing 1.6 million pounds fully fueled, unleashes 2.1 million pounds of thrust from the three RS-68A main engines at 1:51 p.m. EDT (1751 GMT) today to launch from Cape Canaveral on NROL-37.
Photos: Gantry rollback for second launch attempt
After being put back in position around the Delta 4-Heavy rocket after Thursday's weather scrub, the 330-foot tall mobile service tower is retracted again at Cape Canaveral's pad 37B for launch that will place the NROL-37 payload into Earth orbit.