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 ...

"We study cometary bodies because they act as time capsules, sealing in material from their formation billions of years ago." The Europa Clipper spacecraft may soon be pummeled by charged particles — ...

Mars, Europa and Enceladus are the three most promising locations in the solar system to search for life living off cosmic rays. Cosmic rays could be a vital source of energy for life on icy moons, on ...