New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

Men tend to fall in love faster, possibly to show deep emotional commitment. Women, once in love, often feel it more deeply ...

Water from both volcanic rocks and deep mantle melted Earth's crust 1.6 billion years ago. This long-lasting melting formed ...

New research suggests melting ice sheets are warming global temperatures which may speed up continental drift, creating ...

Muscle gains are the same with plant or animal protein—as long as you get enough, says a University of Illinois study.

Scientists have discovered two new methane-producing archaea in the human gut, revealing surprising links to inflammation and ...

Parents often wonder when to talk about puberty. A national poll offers insights and simple ways to start the conversation.

Sea slugs use bold, bright colors under sunlight to warn predators of their toxic traits. These colors are easier for fish to ...

A wearable sensor developed by Penn State researchers tracks real emotions through body signals like heart rate and skin ...

Research reveals robots are learning more ways to accomplish human tasks, gaining smarter memory and assisting home-owners.

Scientists may have finally found the universe’s missing matter - hidden in invisible hydrogen gas far beyond galaxies.