GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Our nearest star neighbor, Proxima Centauri, is 4 light years away from Earth. How old is the light by the time we see it?
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4, 000 years-old
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400 years-old
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4 years-old
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40 years-old
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Explanation:
Detailed explanation-1: -Alpha Centauri is a triple star system located just over four light years, or about 25 trillion miles, from Earth. While this is a large distance in terrestrial terms, it is three times closer than the next nearest Sun-like star.
Detailed explanation-2: -The nearest-known exoplanet is a small, probably rocky planet orbiting Proxima Centauri – the next star over from Earth. A little more than four light-years away, or 24 trillion miles. If an airline offered a flight there by jet, it would take 5 million years.
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