Venus and Saturn are due up for a visually striking event known as a planetary conjunction. Here's everything to know about when and how to see it.

Newly released Mars images offer a detailed look at one of the Red Planet's oldest, most heavily cratered regions, a landscape shaped by billions of years of impacts, volcanism and erosion.

Tests involving growing chickpea plants in lunar regolith treated with vermicompost and fungi yielded harvestable crops — but ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

In early February of 1943, Gene Grabeel walks toward a corner of a large, crowded room inside Arlington Hall near Washington, D.C. Around her, clutches of people huddle over tables and quietly rifle ...