Our everyday GPS struggles in “urban canyons,” where skyscrapers bounce satellite signals, confusing even advanced navigation ...

We've been using GPS to get us where we need to go for decades, but there's a lot you probably didn't know about how it works.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WASHINGTON (AP) — Two Air Force fighter jets ...

WASHINGTON — Two Air Force fighter jets recently squared off in a dogfight in California. One was flown by a pilot. The other wasn’t. That second jet was piloted by artificial intelligence, with the ...