Lockheed Readies Fourth MUOS Satellite for U.S. Navy

Lockheed Martin completed thermal vacuum testing on a mobile user objective system (MUOS) communications satellite for the U.S. Navy. It's the fourth satellite in the MUOS constellation that's scheduled for launch next year, Lockheed Martin said Monday in a news release. It will complete the operational constellation and provide global coverage, it said. MUOS operates "like a smartphone cell tower in the sky" to improve current secure mobile satellite communications for war fighters on the move, Lockheed said.