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Our current rockets would take tens of thousands of years to get to even the nearest star, 4.3 ly away. If we invent a spacecraft that can travel 0.1 the speed of light, how long would it take to travel to the nearest star?
- 4.3 ye
- 3.8 x 10^14 yr
- 43 ly
- 1.9 x 10^7 yr
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