text: Solar spacecraft set to launch next year The \$4 million Cosmos 1 project is backed by The Planetary Society, co-founded by Carl Sagan. By The Associated Press. A solar sail spacecraft designed to be propelled by the pressure of sunlight will be launched 
inputs: Solar spacecraft set to launch next year The \$4 million Cosmos 1 project is backed by The Planetary Society, co-founded by Carl Sagan. By The Associated Press. A solar sail spacecraft designed to be propelled by the pressure of sunlight will be launched 