Almost 85 million Americans from South Dakota to Texas and North Carolina to Florida are already under extreme heat warnings, watches or advisories.

China's Tianwen 2 probe has captured striking pictures of home as it heads out to a near-Earth asteroid to collect samples.

The largest dark sky sanctuary in the world is 2.4 million acres of volcanic landscape, deserts, and mountains. Learn how to ...

A decade of observations by NASA’s Hubble Space Telescope has produced the sharpest and most detailed images of the Andromeda ...

The House version of the NDAA takes aim at acquisition and requirements processes that have long bedeviled both Congress and ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

When the first astronauts walked on the moon as part of the Apollo Program, the concept of lunar habitats ceased being the ...