The U.S. Defense Department and Office of the Director of National Intelligence are planning a second space traffic management center to serve as a backup to the existing facility in light of what government officials say are rising threats from China and Russia.

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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...