December 17, 2018

Live coverage: Delta 4 launches from California with spy satellite

January 10, 2018

United Launch Alliance kicked off its 2018 launch campaign with a Delta 4 rocket flight at 2:11 p.m. PST (5:11 p.m. EST; 2211 GMT) Friday from Vandenberg Air Force Base in California. Gusty winds forced officials to call off a launch attempt Wednesday, and technical problems halted a countdown Thursday multiple times. The Delta 4 launched with a top secret spy satellite for the National Reconnaissance Office.

Delta 4 launch from California slips to January

December 6, 2017

The launch of a top secret National Reconnaissance Office spy satellite from Vandenberg Air Force Base in California has been pushed back from Dec. 13 until no earlier than Jan. 10 to complete software validation on the Delta 4 rocket’s new avionics system, United Launch Alliance announced Wednesday.

Photos: Additional shots of successful Delta 4 rocket launch

March 19, 2017

The 377th Delta rocket begins its journey to space carrying a military communications satellite funded by Canada, Denmark, the Netherlands, Luxembourg and New Zealand in a deal that gives the allies access to the U.S. military’s worldwide Wideband Global SATCOM system.

Photos: Launch boosts satellite for U.S. allies

March 19, 2017

The United Launch Alliance Delta 4 Medium+ (5,4) rocket lifted off at 8:18 p.m. EDT (0018 GMT) from Cape Canaveral in service to the U.S. military’s Wideband Global SATCOM communications satellite constellation.

Photos: Delta 4 powers from pad with international satellite

March 19, 2017

Launching the Wideband Global SATCOM 9 satellite purchased by allied nations in collaboration with the U.S. military’s worldwide communications network, a United Launch Alliance Delta 4 rocket thundered away from Cape Canaveral at 8:18 p.m. EDT (0018 GMT).

Video: Liftoff of Delta 4 rocket and WGS 9 satellite

March 19, 2017

The United Launch Alliance Delta 4 rocket, standing 217 feet tall and weighing 900,000 pounds, unleashes 1.8 million pounds of thrust from its main engine and four side-mounted boosters at 8:18 p.m. EDT Saturday (0018 GMT Sunday) to launch the ninth Wideband Global SATCOM satellite for U.S. military and allied communications.

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