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The nearest star to us, apart from the Sun, is 4.3 light years away from the Earth. One light year is the distance traveled by light in one year.

How long does it take the light from this star to reach us?

Answer :

Final answer:

The light from the star which is 4.3 light years away from us would take 4.3 years to reach us. This is because a light year is defined as the distance that light travels in one year.

Explanation:

The nearest star to us is 4.3 light years away. A light year is the distance light travels in one year. Hence, the light from that star would reach us after 4.3 years. This is because light from the star travels the 4.3-light year distance at the speed of light to reach us. As such, we are seeing the star as it looked 4.3 years ago, not how it looks right at the current second.

Learn more about light years here:

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