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October 20th, 2005
Astronomer says nanotechnology may be key to future space travel
Professor Debra Fischer of San Francisco State University also enjoys speculating on forward-looking fields like nanotechnology. "Science requires speculation, creativity and wild ideas," she says.
One of the main obstacles to sending spacecraft outside the solar system is the tremendous amount of energy required to blast a Volkswagon-sized craft past its gravity. "Nanotechnology solves this problem by sending off tiny spacecraft" into the cosmos like a cloud of dust.
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