the nearest star beyond our sun is 25 trillion miles away. The fastest rocket man has built would take more than 4,000 years to get there. This isn't just about thinking new rocket methods, Neyland said. It's also about coping with extended life in space, raising issues of medicine, agriculture, ethics and self-reliance, he said.
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mcgrew writes: "First DARPA had Star Wars, now they have Star Trek. They're offering half a million bucks for someone to find a way to get people to neighboring stars.