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 ...

December's full cold moon of 2025 rises in Gemini as the last, bright supermoon of the year to shine for days amid the start of the spectacular Geminid meteor shower. Here's what it means and when to ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. The dark side of the moon is real — but it’s probably not ...