The distance to Alpha Centauri is approximately 4.30 light years. The speed of the spaceship is 0.800c, where c is the speed of light.
Using the formula for time, \( t = \frac{d}{v} \):
\[
t_{\text{Earth}} = \frac{4.30 \text{ light years}}{0.800c}
\]
Since 1
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