An ion engine will reach the stars



the PopMechanics Brain Trust : scientist
If you're thinking of making the trip to Alpha Centauri, pack plenty of snacks. At 25.8 trillion miles, the voyage requires more than four years of travel at light speed, and you won't be going nearly that fast. To complete the journey, you'll have to rely on a scaled-up version of the engine on the Deep Space 1 probe, launched in 1998. Instead of liquid or solid fuel, the craft was propelled by ions of xenon gas accelerated by an electric field


Popular mechanics, (2012) "110 Predictions For the Next 110 Years", [online], Available: http://www.popularmechanics.com/technology/engineering/news/110-predictions-for-the-next-110-years


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