Proposed Methods of Interstellar Travel
If a spaceship could average 10 percent of light speed (and decelerate at the destination, for manned missions), this would be enough to reach Proxima Centauri in forty years. Several propulsion concepts are proposed that might be eventually developed to accomplish this, but none of them are ready for near-term (few decades) development at acceptable cost.
Read more about this topic: Interstellar Travel
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