December 16, 2017

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.

Photos: Launch pad gantry retracted from Delta 4 rocket

March 18, 2017

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. The 9-million-pound gantry was retracted the length of a football field in preparation for launch of the Air Force’s WGS 9 communications satellite into Earth orbit.

Live coverage: Delta 4 countdown and launch journal

March 17, 2017

The United Launch Alliance Delta 4 rocket has taken off tonight from Cape Canaveral, headed for space to deploy a satellite bought by allied nations to bolster the U.S. military global communications infrastructure.

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