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
NASA's JWST recently detected carbon dioxide in the atmosphere of an exoplanet known as WASP-39b — a historical first.
NASA's Double Asteroid Redirection Test (DART) spacecraft intentionally crashed into Dimorphos, the moon of an asteroid named Didymos.
Get ready for NASA's demonstration of a planetary defense technique that could deflect a future asteroid on course to hit Earth.
China's Tianwen-3 aims to be the first to collect samples from Mars and deliver them to Earth, potentially landing back home two years ahead of the NASA and the European Space Agency MSR project