Lockheed Martin says that the Defense Satellite Communications System III constellation has “surpassed 175 years of on-orbit service.” The DSCS constellation comprises nine satellites in geostationary orbit that provide worldwide military secure voice and high-data-rate communications. The company has built 14 DSCS spacecraft, the last of which launched in August 2003.
The Space Force awarded SpaceX a $4.16 billion contract on May 29 to build a constellation of satellites that can sense and track airborne targets from orbit.