The Curiosity rover conducted a first-of-its kind experiment on Mars, detecting organic molecules that have never been ...

The universe has a hidden structure, and a University of Virginia professor is mapping it in 3D, using 46 million galaxies ...

Physics is riddled with paradoxes: Think of how information leaks from supposedly inescapable black holes or how the ...

Alphabet stock gets a "Strong Buy" rating and a $480 target as AI/cloud lead grows. Here's what investors need to know about ...

WASHINGTON — The defense secretary's decision to review military standards on combat and physical fitness and appearance opens a Pandora’s box of widely differing rules among the services.

U.S. military recruitment made a comeback after a downturn caused primarily by the COVID-19 pandemic, low unemployment and stiff competition from the private sector.