The Sky's The Limit - The Global Positioning System (GPS)101 <<Safer,Smarter,Confident Pilots>> #SmartPilotLikeToLearn The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States ...
![From MIT Tech Review: “Astrophysicists Turn GPS Satellite Constellation into Giant Dark Matter Detector” | sciencesprings From MIT Tech Review: “Astrophysicists Turn GPS Satellite Constellation into Giant Dark Matter Detector” | sciencesprings](https://d267cvn3rvuq91.cloudfront.net/i/images/gps-dark-matter.png?sw=1200&cx=0&cy=0&cw=699&ch=570)