The F-35A Lightning II is on the cusp of a major leap in air combat capability, as the European Meteor beyond-visual-range ...

This December's dazzling display comes from a strange asteroid with comet-like behavior—and a tail of debris that astronomers ...

Catching the best Geminid meteor shower display requires planning, patience, and weather monitoring. Here’s where, when, and ...

The same geomagnetic storm that makes aurora sightings likely can disrupt power systems, navigation signals, and satellites.

Locked inside a frozen rock from the edge of the world is a story that began before Earth had oceans, continents or even a ...