A United Launch Alliance Delta 4 rocket carrying a payload for the National Reconnaissance Office lifted off from Space Launch Complex-6 on Feb. 10 at 3:40 a.m. PST.

A United Launch Alliance Delta 4 rocket launched Feb. 10 from Vandenberg Air Force Base, California, carrying a classified payload for the U.S. National Reconnaissance Office.

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Mike Gruss is the chief content and strategy officer at SpaceNews. From 2013 to 2016 he was a senior reporter at SpaceNews covering military space. Previously, he was editor in chief of Sightline Media Group and worked as a reporter and columnist for...