That sharp, briny smell is not the salt, it is a gas made by life, breathed out by tiny ocean creatures too small to see. For ...

The Outer Limits still feels remarkably modern, with eerie sci-fi stories that inspired generations of genre television.

July has arrived with explosions of fireworks and celebrations of the 250th anniversary of our country. For those who aren’t ...

Investigating an area of interesting light rock seen from orbit, Curiosity found some particularly weird-looking structures.

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...