The Planetary Society

Nonprofit or community organization

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About us

The Planetary Society is the world's largest space advocacy and outreach nonprofit organization, with over 40,000 members in 100 countries. It is an entirely member-funded and independent organization.  

The Society works to create a culture of exploration around the world, with the goal of increasing the number of peaceful missions to space by the U.S. and other countries. We work to ensure a robust program of robotic planetary exploration for scientific purposes. 

The Planetary Society also creates and manages its own projects, including providing funding for SETI, near-Earth object surveys, planetary defense, seed funding for new technologies, and a solar sail mission, LightSail.  

The Society was founded in 1980 by Bruce Murray, Lou Friedman, and Carl Sagan, and is currently led by CEO Bill Nye, the Science Guy.


Contact information

Date Founded: 1980

Government ID number: 95-3423566

Email: Log in to view email addresses.


Phone: 626-793-5100

Fax: 626-793-5528

85 South Grand Avenue, Pasadena, CA, 91105-1602, US

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