Cosmos 1, a project of The Planetary Society and Cosmos Studios, was launched from a submerged Russian nuclear submarine in the Barents Sea on June 21, 2005. Unfortunately, the rocket failed, and the spacecraft did not reach orbit. Cosmos 1 was designed to sail on light, using photons for propulsion in Earth orbit.
The history of exploration has always been one of both adventure and risk. The Planetary Society accepts that challenge and plans to try again to fly the world's first solar sail spacecraft.