The U.S. Air Force successfully launched another Boeing-built positioning, navigation and timing satellite Oct. 29, just days after saying first of its next-generation GPS satellites, developed by Lockheed Martin, is now expected to launch in December 2016.

This post is only available to members.

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...