We’re learning from our own deep space signals where to look for signs of extraterrestrial life.

Learn how modern humans adapted to the Americas, possibly thanks to a Denisovan gene.

Learn how the first civilization in Mesopotamia depended on tides and how it responded when faced with a major environmental ...

Learn about a new study that suggests the key to a perfect first date is to focus on good conversation rather than location.

Find out how to watch the second planet parade of the year, as six planets and the moon prepare to align in the sky starting ...

Did the Lost City of Atlantis really exist? Unfortunately, the answer is no, but learn what researchers have discovered through the years and why theories still persist today.

What is excessive daytime sleepiness? Tiny blood metabolites reveal how diet and biology are tied to daytime alertness and ...

Discover why the muscle and fat of wild pigs are changing colors in California, and learn why the color change is so ...

Learn more about the Eastern Massasauga, a rattlesnake from eastern North America — including the eastern Midwestern United ...

How do scientists know how old Earth is? Learn how experts have measured Earth's age, and why it is more difficult to ...

Learn more about what a star’s color means and while you’ll never see a twinkling green star in the night sky.