February 20, 2018

Delta 4 rocket successfully lofts clandestine NRO satellite into orbit

January 13, 2018

A United Launch Alliance Delta 4 rocket climbed into orbit Friday from Vandenberg Air Force Base in California with a top secret spy satellite, adding a new set of eyes in the sky for the U.S. government’s intelligence community and nudging part of the Delta 4 family closer to retirement.

Watch a replay of the Delta 4 NROL-47 launch

January 12, 2018

Watch a replay of the United Launch Alliance Delta 4 rocket launching from Vandenberg Air Force Base in California, hauling into orbit a new eye in the sky for the National Reconnaissance Office.

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.

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