By 
The U.S. Air Force has formally accepted the first Global Positioning System (GPS) III satellite from prime contractor Lockheed Martin [LMT], the company announced Oct. 10.The “available for launch” milestone clears the way for the spacecraft, which is in storage, to lift off in 2018, Lockheed Martin said.Lockheed Martin is building a total of 10 GPS III satellites, which are designed to replenish the GPS constellation and provide more accurate signals, be more resistant to jamming and last longer than…
