Beneath the rolling hills of the Appalachian Basin, an ancient rock formation holds what some are calling America’s greatest ...

The new material could be key to finally building a successful fusion reactor.

Russia's state-owned Rosatom announced a prototype plasma engine which could speed up travel to other planets.

NASA's Perseverance rover has been busy gathering bits of Mars — rock cores the size of chalk sticks, clusters of broken fragments no bigger than pencil erasers, and even grains of dust fine enough to ...