A brain chemical may help people stay awake even when they are really, really tired.
Scientists may have found a clever way to clean up oil spills — with magnets.
Scientists have found a link between frequent childhood ear infections and obesity later in life.
A good mood may not be so great for school work
The smallest species of snake ever discovered lives on the Caribbean island of Barbados.
Scientists have figured out how mice use their noses to sniff out fear in other mice.
Mission to Mars finds water ice
Obesity is on the rise, but there are plenty of things you can do to maintain a healthy weight.
Scientists are finding new ways to help stop poachers from hunting endangered animals.
For the first time, scientists have caught a star in the act of exploding.