
Lockheed Martin [LMT] has finished assembling the second Global Positioning System (GPS) III satellite for the U.S. Air Force and plans to begin environmental testing of the navigation spacecraft this summer, the company announced June 26.The testing, which will take place at a company plant near Denver, is designed to ensure the satellite can withstand the harsh conditions of launch and space. The satellite is slated to be available for launch in 2018.Eight more GPS IIIs are in various stages…