Created by the solar wind — a stream of charged particles constantly pouring out from the sun — the heliosphere acts as a ...

Your weight doesn't change because of gravity but because the floor pushes back. Physicists explain why elevators briefly ...

Ancient followers of the Eleusinian Mysteries may have used a highly toxic fungus to create psychedelic hallucinations during ...

Pain is something most people experience after an injury, whether from a sprained ankle, surgery or car accident. Normally pain fades as the body heals. But it may last longer in women than in men, ...