Next-Gen GPS Satellites Get Ground-Control Modernization - Breaking Defense
The need for a Deep Space GPS - Space Legal Issues
A short history of GPS development > Schriever Space Force Base > Article Display
NASA Will Soon Use GPS Technology to Navigate in Space
Satellite navigation - Wikipedia
Air Force experiment NTS-3 could point the way to the next generation of GPS - SpaceNews
How Does GPS Work? | NASA Space Place – NASA Science for Kids
Masten Space Systems to develop a GPS-like network for the moon | TechCrunch
14. Space Segment | The Nature of Geographic Information
Using GPS, NASA tests atomic clock navigation
GPS-3 (Navstar-3) - Gunter's Space Page
GPS.gov: Space Segment
Japan launches successor to aging GPS satellite into orbit | The Japan Times
Countering the Loss of Satellite Communications and GPS | The MITRE Corporation
Space Integrated GPS/INS (SIGI)
GPS Satellites | Lockheed Martin
Lunar GPS? NASA Knows How to Help Astronauts Navigate | Space
NASA Seeks Wider Use of GPS: Not From Space, but in Space - Via Satellite -
Deep Space GPS from Pulsars | Discover Magazine
Brief History of GPS | The Aerospace Corporation
Protect GPS" High on Space Force To-Do List? - C4ISRNET - RNTF
Global Positioning System satellite achieves 20 years on-orbit > Air Force Space Command (Archived) > Article Display
A step toward making GPS more resilient to space weather
Satellite GPS Receivers - General Dynamics Mission Systems
