But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

The International Astronomical Union recognized 128 newly discovered moons orbiting the ringed planet.

In recent years, JWST has revealed a fascinating class of never-before-seen objects, just hanging out in crowded, nebular ...

Planetary parade: List of all planets visible in February 2025 Five of the brightest planets — Venus, Jupiter, Mars, Mercury, and Saturn — will be visible to the naked eye.