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Unless they come up with another form of propulsion, gong to another star system will never happen in our life time. Alpha Centauri is the closest star system to us and at 20,000 mph it would take 178,000 years to reach it. Even at the speed of light (186,000 miles per second) it would still take 4.5 years to get there. No need to start saving money for a plan ticket.
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