In a distant past, Earth may have flipped on its side to keep its balance. And it could happen again.

Extra light exposure during the day helps keep you alert, a new study finds.

Scientists have for the first time erased long-term memories in rats and also directly seen how the brain is changed by learning.

Single-celled amoebas, the simplest creatures known, stick with kin in times of need.

The doctors of ancient Greece and China had it right when they applied cool and minty salves to soothe aches and pains.

Bundles of proteins, called microtubules, once lined up uniformly straight, begin to buckle and bend under compression stress generated their own growth.