Strong GPS signals are required to navigate with electronic maps while driving in the city. For driverless cars, this is especially important. Now, researchers have figured out how to make GPS ...

I live in horse country, and there are numerous bridle trails throughout the area that are _not_ on USGS maps. The only place I've found documentation of the trails is on this $20 Trail Guide, (second ...

Our everyday GPS struggles in “urban canyons,” where skyscrapers bounce satellite signals, confusing even advanced navigation systems. NTNU scientists created SmartNav, combining satellite corrections ...