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Problem during fueling preps forces Atlas 5 launch delay
United Launch Alliance called off a launch attempt Monday after hitting a snag during preparations to fill an Atlas 5 rocket with cryogenic propellants at Cape Canaveral, delaying the liftoff of a new U.S. Space Force infrared surveillance satellite until no earlier than Tuesday.
VideoLive coverage: Atlas 5 launches with missile warning satellite for U.S. military
United Launch Alliance launched the U.S. military's SBIRS GEO 5 early warning satellite into orbit aboard an Atlas 5 rocket from Cape Canaveral Space Force Station. A launch attempt Monday was scrubbed during fueling preps due to a faulty temperature sensor. Liftoff of ULA's workhorse rocket, fitted with two strap-on solid-fueled boosters, occurred at 1:37 p.m. EDT (1737 GMT).
VideoAtlas 5/SBIRS GEO 5 launch timeline
This is the launch timeline to be followed by the Atlas 5 rocket’s ascent into orbit from Cape Canaveral with the SBIRS GEO 5 satellite for U.S. military infrared reconnaissance.

Photos: Atlas 5 ready for liftoff with SBIRS GEO 5
These photos show a 194-foot-tall United Launch Alliance Atlas 5 rocket standing on pad 41 at Cape Canaveral Space Force Station in advance of a planned launch with the U.S. Space Force's fifth SBIRS missile warning satellite.

Billion-dollar missile defense satellite ready for launch Monday in Florida
A sophisticated combat-ready U.S. military missile warning satellite moved to its launch pad at Cape Canaveral Space Force Station Saturday on top of a United Launch Alliance Atlas 5 rocket, ready for liftoff Monday afternoon.

U.S. military warning sentinel attached to Atlas 5 rocket at Cape Canaveral
United Launch Alliance crews at Cape Canaveral have topped off an Atlas 5 rocket for liftoff Monday with the U.S. military's next infrared sentinel to join a satellite fleet designed detect missile launches around the world.

Spy satellite successfully launched from California military base
A United Launch Alliance Delta 4-Heavy rocket climbed into orbit Monday from a military base northwest of Los Angeles, delivering to space a classified U.S. government spy satellite as large as a school bus and leaving just three Delta rockets left to fly before retirement.

Photos: Delta 4-Heavy rocket awaits liftoff from historic SLC-6 launch pad
A United Launch Alliance Delta 4-Heavy rocket is awaiting liftoff with a classified U.S. government spy satellite at Vandenberg Air Force Base's historic Space Launch Complex-6, a picturesque rocket facility that was once intended to support launches of military astronauts and space shuttles.
VideoLive coverage: ULA’s heavy-lift rocket lifts off from California
A United Launch Alliance Delta 4-Heavy rocket lifted off from Vandenberg Air Force Base in California at 1:47 p.m. PDT (4:47 p.m. EDT; 2047 GMT) Monday with a classified satellite for the National Reconnaissance Office, the U.S. government's spy satellite agency.

One of ULA’s four remaining Delta 4 rockets set to launch from California
United Launch Alliance ground crews on California's Central Coast are gearing up to send a classified U.S. government spy satellite into orbit as soon as Monday -- weather permitting -- aboard one of the company's four remaining Delta 4-Heavy rockets.