http://news.bbc.co.uk/2/hi/science/nature/4110912.stmA solar sail spacecraft launches on Tuesday, to demonstrate an elegant new way to power interplanetary probes.
The Cosmos-1 mission is privately funded - half the money will come from a TV studio - and lift-off will be from a Russian submarine in the Barents Sea.
The sail reflects particles of light, or photons, from the Sun, gaining momentum in the opposite direction and driving the spacecraft forward. ...
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