Deaconblue
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Here's something really worthy of a "FUCK YEAH SCIENCE!"
http://www.bbc.com/news/science-environment-36025706
The objective - interstellar travel. Stephen Hawking says it might happen within a generation!!! Who are you to say he's wrong?
I have vague memories of reading a scifi story about something like this. Story about an interplanetary race with capsules attached to huge sails to capture solar wind and move the capsule. Race course was like earth orbit beyond moon, out to Mars, around the planet and back to earth, whereupon the sails were dumped and the capsule re-entered. It could only be run every so often when the planet orbits aligned correctly.
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Found what I was looking for in Wikipedia.
"Sunjammer" is a science fiction short story by Arthur C. Clarke, originally published in 1963,
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