If they seem like teenagers don't take your feelings into account, it's probably because they can't.

Rituals that cleanse the body to purify the soul are at the core of religions worldwide. Now scientists find these ceremonies apparently have a psychological basis.

The 3-D maneuverability of Frisbee-shaped robots could prove advantageously nimble and lethal in city settings.

Aussie scientists are investigating a new strategy of dealing with fishy pests.

In the next five years, dozens of food and agriculture products could emerge based on nanotechnology. Little is known about potential health threats, however.

To find out how some of the most dangerous hurricanes form, U.S. and French researchers are launching large, specialized balloons carrying nearly 300 instruments over wide swaths of Africa and the Atlantic Ocean.