Welcome to today's Space Briefing -- a biweekly roundup of the latest national security space news. Top Story Space Force to solicit bids this summer for new deep-space radar program The Space Force expects to release a request for proposals for the Deep Space Advanced Radar Capability this summer, a new acquisition program aimed at providing persistent coverage of objects in geosynchronous orbit. News & Notes AFRL, Space Force set priorities for new testing enterprise As the Air Force Research...