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.
Saturn's largest moon, Titan, is both the only other place in the solar system with liquid on its surface and the only moon with a thick atmosphere, making it a tantalizing destination to search for life.
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
The chances of large impacts from asteroids and near-Earth objects capable of causing widespread damage on Earth are small — but they aren’t zero.
Humans have left many objects throughout space — whether it's archaeology or simply littering is up for debate.
After completing Mars Sample Return, Uranus should be the target of NASA's next major planetary mission, according to a major new report by the National Academies of Sciences.
While NASA will launch Dragonfly later this decade to Titan, another potentially habitable moon of Saturn, no space agency is currently funding a mission to Enceladus.