Add Yahoo as a preferred source to see more of our stories on Google. Cosmic radiation could be a boon for subsurface life on worlds such as Europa (left), Mars (center) and Enceladus (right), ...

Too much cosmic radiation can sterilize a planet – but a surprising new study has found that under the right circumstances, it could actually make uninhabitable worlds habitable. Ionizing radiation ...

Cosmic rays could be a vital source of energy for life on icy moons, on Mars, or even on rogue planets that wander alone between stars; it's possible, scientists say, that the phenomenon could create ...

Cosmic rays are particles from outer space that travel across the universe. They can be made by the sun, by other stars exploding, and even black holes. They move extremely fast, nearly the speed of ...

While the San Francisco 49ers and the Baltimore Ravens were butting heads and other body parts a couple of Sundays ago, they were simultaneously taking a whole different type of pounding, though they ...