Where did we come from? Are we alone in the Universe? We can only answer these questions by exploring the planets and other worlds of our solar system and beyond. Learn why these worlds are so important, and how you can get involved.
What is a Planet?
It's right there in our name: The Planetary Society. But what is a planet? This seemingly simple question is the subject of much debate.Learn More
New research says methane levels detected in the plumes of one of Saturn's moons, Enceladus, might point to a habitable world.
NASA's Dragonfly dual-quadcopter will carry a suite of instruments designed to analyze the surface of Saturn's moon, Titan.
Here are some of our favorite pictures of Saturn's iconic rings, featuring images from Cassini, Voyager 1 and 2 and more.
Here's what NASA's upcoming Venus missions — DAVINCI+ and VERITAS — hope to uncover.