Add Yahoo as a preferred source to see more of our stories on Google. A Penn State-led study reveals the hidden chain reaction that starts lightning, linking electrons, X-rays, and gamma rays. (CREDIT ...

Earth’s magnetic field, the invisible barrier that deflects solar radiation and makes surface life possible, is not permanent in its current orientation. Geologic records show that magnetic north and ...

Add Yahoo as a preferred source to see more of our stories on Google. The official 4-species status was achieved only after reviewing recent genetic, morphological, and biogeographic studies on ...

Japanese scientists have found that age—related decline in long-term memory is not caused by its disappearance, but by ...

Scientists have known for decades how lightning travels once it forms, but the exact trigger inside a thundercloud stayed uncertain. A new study now offers the clearest explanation yet for how ...