The Earth is four and a half billion years old, so why they started appearing then is unknown, as is the mechanism to make ...

The U.S. Army's decision to establish commercial heavy rare earth processing at a military installation marks a major ...

NASA has confirmed that the 1,200-foot Apophis asteroid — one of the largest near-Earth objects ever tracked — will pass ...

(Mark Garlick/Science Photo Library/Getty Images) If potted plants always seem to die under your care, you can take solace in ...

A rocky world orbiting inside the habitable zone of a nearby red dwarf has drawn interest from astronomers. The exoplanet ...

A surprising reversal in molten iron flow beneath the Pacific is giving scientists a sharper view of how Earth’s magnetic ...

When you think about a large asteroid impact, you might imagine a moment of devastation: a violent collision, a blast of heat ...

Multiple CMEs are heading toward Earth, with G1-G2 geomagnetic storm conditions possible as the holiday weekend begins.

As the sun expands over the coming billions of years, Earth will become inhospitable to any life more complex than a microbe ...