British engineers from University College London have developed a passive radar system that can see through walls using the WiFi signals generated by wireless routers and access points.

Unsuspecting speed radar devices in Arlington will help police determine where to patrol Strapped to a power pole, the unassuming device, about the size of a lunchbox, quietly captures the speed ...

A radar system that can track missiles flying five times the speed of sound has been delivered to the U.S. military, marking a major upgrade to one of the its most essential missile defense systems.

Politics More cities begin using speed radar cameras to write tickets after change to Colorado law A new law passed in 2023 expanded the areas where speed radar technology can be used.

The state Senate thinks so. A bill permitting local police departments to use radar passed 49-1 last week. Only state police are allowed to use radar in Pennsylvania.