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Account Center Search Our Work Explore Space Take Action About Donate Join Search Menu Join Become A Member Renew Gift Membership Other Ways to Give Donate Join Donate Back To Main Menu What We Do Explore Worlds Find Life Defend Earth How We Work Education & Public Outreach Space Policy & Advocacy Science & Technology Global Collaboration Our Results Our Impact Learn how our members and community are changing the worlds. LightSail Our citizen-funded spacecraft successfully demonstrated solar sailing for CubeSats. Back To Main Menu Space Topics Planets & Other Worlds Space Missions Night Sky Space Policy For Kids Learn Articles Planetary Radio Space Images Videos Courses The Planetary Report Celebrating 40 Years A Planetary Society retrospective, plus Carl Sagan's Adventure of the Planets and an inspiring young explorer. Back To Main Menu Get Involved Action Center Volunteer as a space advocate. Become A Member Join fellow space enthusiasts in advancing space science and exploration. Email Signup Get updates and weekly tools to learn, share, and advocate for space exploration. Give Renew Membership Support A Project Shop to Support Travel Other Ways to Give The Planetary Fund Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice. Give Today Back To Main Menu About Us Overview Strategic Framework News & Press Careers Contact Us Our Story Our Vision Know the cosmos and our place within it. Our Mission Empowering the world's citizens to advance space science and exploration. Our Work Explore Space Take Action About Account Center Search “Exploration is in our nature.” - Carl Sagan The LightSail 2 solar sailing spacecraft was made possible by people just like you. Be part of what's next! Become A Member Featured Stories The Planetary Report December Solstice 2020 Member Magazine Now Available More Articles Still Looking for the Perfect Space Gift? Planetary Radio Discussing China's Chang'e-5 Moon Mission Support Our Core Enterprises Your Planetary Fund support powers our mission to explore worlds, find life, and defend Earth. Donate Today The LightSail 2 Mission LightSail Updates LightSail 2 Enters Extended Mission Phase LightSail Home The LightSail Mission Donate Support the Mission Carl Sagan co-founded to give you a role in space exploration. Join CEO Bill Nye and the world’s largest and most effective space advocacy movement. Become a member Please accept marketing-cookies to watch this video. Sharing and growing the passion, beauty, and joy of space exploration. Educate We expand public knowledge about space. Learn More Advocate We shape space policy and fight for future exploration. Learn More Innovate We invest in innovative space science and technology. Learn More Collaborate We cultivate a worldwide movement for space. Learn More "We're changing the world. Are you in?" - CEO Bill Nye Sign up for email updates Explore Space Planets & Other Worlds Space Missions Night Sky Space Policy For Kids Learn Articles Planetary Radio Space Images Videos Courses The Planetary Report Get Involved Action Center Email Signup Become A Member Contact Give Renew Membership Support A Project Shop to Support Travel Other Ways to Give Empowering the world's citizens to advance space science and exploration. Account Center • Contact Us © 2020 . All rights reserved. Privacy Policy • Cookie Declaration is a registered 501(c)(3) nonprofit organization. For full functionality of this site it is necessary to enable JavaScript. Here are instructions on how to enable JavaScript in your web browser ....