What’s up in the night sky: March 2026 Our monthly feature focuses on easy and fun things to see in the night sky, including eclipses, supermoons, meteor showers, planetary conjunctions, and more.

The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and…

The latest stories from The Planetary Society, featuring humanity's quest to explore worlds, find life, and defend Earth.

How The Planetary Society works to decrease the risk of Earth being hit by an asteroid or comet.

Apr 21, 2020 · 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.

Our monthly feature focuses on easy and fun things to see in the night sky, including eclipses, supermoons, meteor showers, planetary conjunctions, and…

Jan 7, 2026 · Linda Spilker, project scientist for the Voyager mission, explains what Voyager has revealed about the heliopause and the Solar System’s outer edge.

With a global community of more than 2 million space enthusiasts, The Planetary Society is the world’s largest and most influential space advocacy organization. Founded in 1980 by Carl Sagan, Bruce …

Dec 20, 2024 · Space missions, rocket launches, and celestial events are coming our way in 2025.

Dec 8, 2025 · The Planetary Report December Solstice 2025 From Our Member Magazine The year in pictures 2025 Images from an orbit Written by Kate Howells Public Education Specialist, The …