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A Look Back at an Amazing Year

Jennifer Vaughn • December 31, 2014

As excited as we are to jump into 2015, I want to take time to reflect on the year coming to a close and applaud all that we’ve accomplished working together.

New Developments on the Road to Cosmos 2

Louis D. Friedman • June 23, 2008

The Planetary Society and Cosmos Studios remain committed to flying the first flight with light. Our spacecraft, Cosmos 2, is a maneuverable solar sail that may be the precursor to a new mode of interplanetary travel, and could one day take us to the stars.

Cosmos 2

Louis D. Friedman • November 16, 2007

A letter from the Executive Director to the members and supporters of The Planetary Society.

Making Light Work

Louis D. Friedman • June 15, 2007

Professional Pilot Magazine asked me to contribute a prediction about the future of flight for the next century. Naturally, I wrote about solar sailing.

Update: Monitoring the Weather?

Louis D. Friedman • October 20, 2006

The bigger the dream, the harder it is to achieve it. Our dream at The Planetary Society is to fly the first solar sail mission -- and prove the technology that might someday take humanity to the stars.

Update: Getting Started

Louis D. Friedman • December 02, 2005

The Planetary Society solar sail team is working to try again to fly the world’s first solar sail spacecraft.

The End of Cosmos 1, the Beginning of the Next Chapter

Louis D. Friedman • September 30, 2005

Cosmos 1 was—and is—a great effort, and one we are proud The Planetary Society tried to do. Our independent grassroots organization built and launched a spacecraft whose technology promises to one day open up interstellar travel.

Volna Failure Review Board Reports on Loss of Cosmos 1

Louis D. Friedman • July 20, 2005

The Volna Failure Review Board convened by the Makeev Rocket Design Bureau, manufacturers of the Volna launch vehicle, has made its final report to the Russian space agency, Roskosmos, concerning the attempted June 21 launch of our Cosmos 1 spacecraft.

The Planetary Society Asks "Where is Cosmos 1?" Received Signals May Have Come from Solar Sail Spacecraft in Orbit

Susan Lendroth • July 01, 2005

The Planetary Society continues to investigate the mystery of what happened to its Cosmos 1 spacecraft - a joint project with Cosmos Studios - that launched last week on a Russian Volna rocket.

The Mystery of Cosmos 1

Emily Lakdawalla • July 01, 2005

I know I've probably disappointed a few people by not having had anything much to say about Cosmos 1 for a while. It's because, well, we haven't had anything much to say.

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