This Curious Device Could Usher In GPS-Free Navigation

A lab in the sky: Physics experiment in Earth’s atmosphere could help improve GPS performance

What To Do When China And Russia Jam GPS? Use The Earth’s Magnetic Field

Researchers have developed a machine learning system that analyzes high-resolution satellite imagery, GPS, & crash data in order to map potential accident-prone sections in road networks, successfully predicting accident ‘hot spots’ where no other data or previous methods would indicate them.