Second only to black holes, neutron stars—incredibly dense star remnants—are the densest objects in the universe. When ...

During World War II, Allied scientists developed the proximity fuze, a top secret device that allowed anti-aircraft shells to explode automatically when they came close to an aircraft rather than ...

A trailer loaded with fireworks erupted in flames along a Tennessee interstate Saturday night, sending pyrotechnics shooting across the roadway and forcing authorities to temporarily shut down traffic ...

Bombshell video shows flashes from an old Southern California Edison transmission line at the origin of the deadly Eaton Fire, providing the clearest look yet at what may have happened in the moments ...

Federal agents were looking for records that might shed light on why chemicals overheated, threatening a catastrophe in Orange County. By Tim Arango and Livia Albeck-Ripka Livia Albeck-Ripka reported ...

Blue Origin is one of two companies — Elon Musk’s SpaceX is the other — that NASA has hired to take astronauts from lunar orbit to the moon’s surface. The plan for Blue Origin’s Blue Moon lander ...