Hidden by sunlight today, the New Moon and three planets parade across the sky in the constellations Libra and Scorpius. One of those planets, Saturn, just had its biggest moons mapped in rich color ...

Astronomers have discovered a panoply of new moons orbiting Saturn, bringing the ringed gas giant's total up to 274 moons—far beyond any other planet in our solar system. A natural-color view of ...