SUMMARY: The Planetary Society announced this week that they will be pushing back the launch of the Cosmos 1 solar sail from October to some time in 2004. This will give the mission team more time to test various aspects of the spacecraft to make that it works properly when it does launch. Their previous launch of a solar sail failed when the Volna rocket carrying it failed to deploy the spacecraft. If successful, this prototype vehicle will help demonstrate that the light from the Sun can be used for propulsion.

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