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Photos: More Launch shots of Delta 375 rocket
The United Launch Alliance Delta 4 Medium+ (4,2) rocket lifted off at 12:52 a.m. EDT (0452 GMT) from Cape Canaveral for the Geosynchronous Space Situational Awareness Program.

Delta 4 successfully soars to the high ground to deploy two patrol satellites
The 375th Delta rocket doubled the size of the Air Force's "neighborhood watch" program today with the successful launch and deployment of two surveillance satellites into the vast geosynchronous belt of spacecraft around the planet.

Photos: Delta 4 lights up the sky for night owl launch
Launching the second pair of Geosynchronous Space Situational Awareness Program satellites for the U.S. military, a United Launch Alliance Delta 4 rocket thundered away from Cape Canaveral today at 12:52 a.m. EDT (0452 GMT).

Video: Liftoff of Delta 4 with second GSSAP satellite duo
The United Launch Alliance Delta 4 rocket, standing 206 feet tall and and weighing 720,000 pounds, unleashes 1.1 million pounds of thrust from its main engine and two side-mounted boosters at 12:52 a.m. EDT (0452 today to launch the GSSAP No. 3 and No. 4 satellites for the Geosynchronous Space Situational Awareness Program from Cape Canaveral.

Photos: Gantry retracted from Delta 4 rocket
The 330-foot tall mobile service tower is rolled away from the United Launch Alliance Delta 4 rocket at Cape Canaveral’s pad 37B in the hours before the scheduled liftoff on Aug. 19.
VideoLive coverage: Tonight’s Delta 4 countdown and launch journal
A pair of Air Force surveillance satellites headed to geosynchronous orbit today to reconnoiter the high ground, departing Cape Canaveral aboard a United Launch Alliance Delta 4 rocket at 12:52 a.m. EDT (0452 GMT). It is the 375th Delta rocket flight since 1960.

Preview: Two space informants to be launched to geosynchronous orbit
The Air Force will launch a second pair of small security probes 22,300 miles above the Earth using a Delta 4 rocket on Friday to alert ground controllers of impending space collisions and monitor potential meddling with U.S. orbiting assets.

Timeline: Delta 4/GSSAP launch events
Follow the unclassified portion of the Delta 4 rocket's ascent to space from Cape Canaveral's Complex 37 launch pad with the U.S. Air Force's two Geosynchronous Space Situational Awareness Program, or GSSAP, satellites.

Weather outlook good for Friday’s early morning Delta 4 launch
Air Force meteorologists are giving favorable weather odds for the Delta 4 rocket to launch a pair of space surveillance satellites early Friday morning from Cape Canaveral.

Video: Gantry swing arm arrives at Atlas 5 pad for astronauts to board Starliners
Constructing the launch pad infrastructure for astronauts to board Boeing's Starliner crew capsules atop United Launch Alliance Atlas 5 rockets, workers delivered the Crew Access Arm with its White Room to Cape Canaveral's Complex 41 on Thursday, Aug. 11.