The U.S. Navy tested a powerful new laser weapon called HELIOS, capable of downing drones at the speed of light.

This image, released by the U.S. Office of the Director, Test and Evaluation (DOT&E), shows the U.S. Navy successfully testing a high-energy laser weapon mounted on one of its warships, according to a ...

SCIENTISTS have unveiled several options to stop 2024 YR4, an asteroid the size of a football pitch from smashing into Earth. It comes after an expert warned that the chance of the giant space ...