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- The Planetary Society
Co-founded by Carl Sagan in 1980, The Planetary Society is a member-funded nonprofit organization dedicated to advancing space science and exploration through three core enterprises
- Night Sky | The Planetary Society
What’s up in the night sky: December 2025 Our monthly feature focuses on easy and fun things to see in the night sky, including eclipses, supermoons, meteor showers, planetary conjunctions, and more
- About Us - The Planetary Society
They established The Planetary Society to give anyone from anywhere in the world an active role in advancing space exploration Today, The Planetary Society continues this work, under the leadership of CEO Bill Nye, as the world’s largest and most influential non-profit space organization
- Our Story - The Planetary Society
For over 4 decades, our members have made strides in advancing planetary exploration, planetary defense, and the search for life beyond Earth We have delivered tens of thousands of petitions to the United States Congress
- Save NASA Science - Action Hub | The Planetary Society
The Planetary Science Caucus, now in its second year, is officially reorganized and has hit the ground running; organizing against the devastating proposed cuts and rallying bipartisan congressional support for NASA’s science missions
- The Planetary Society
Together with our members and supporters, we’re on a mission to explore worlds, find life off Earth, and protect our planet from dangerous asteroids Join us at planetary org
- What Is A Planet? - The Planetary Society
To figure out where that boundary lies, and how geoscientists might classify planets, it helps to know what planetary scientists have learned about the variety of worlds in our solar system, and which ones experience planetary processes like volcanism, tectonics, and weather
- Space Exploration Missions - The Planetary Society
The Planetary Society is working to change the launch date to 2029 ESA's EnVision will launch no earlier than 2031 to investigate Venus' atmosphere and overall structure
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