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Random Space Fact

How many stars are in the known universe? What's the oldest spacecraft still in orbit? How massive is Jupiter? Watch our weekly Random Space Fact series to find answers to these kinds of questions - at least one space fact and one laugh in one minute.

The Space Advocate

Explore how decisions in space are made and how you can make a difference. Join us as space advocates and help change the future of space for the better.

Bruce Betts' Online College Intro Astronomy Course 2017

Planetary Society Director of Science and Technology Dr. Bruce Betts is teaching an online introductory college Astronomy class during Spring semester 2017. Find out how to watch and learn more about your place in space. The course is through California State University Dominguez Hills.

Hangouts and Webcasts

Recordings of live chats between Planetary Society hosts and guest experts.

MER
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

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Europa
The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.

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