Forecasters warn an extreme winter storm could trigger rare “exploding trees” across the Upper Midwest as temperatures plunge ...

Unlike any other moon, Io is locked in a gravitational tug-of-war between Jupiter and its neighboring moons, stretching and ripping its interior until it erupts nonstop. Volcanoes blast material ...

Have you ever wondered if there are parallel universes? Earlier this year, a NASA study suggested there might be another ...