UNIVERSE
METEORS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How far light can travel through space in one year is known as a/an ____
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Light Year
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Astronomical Unit
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Speed of Light
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9.4607 x 10^12 km
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Explanation:
Detailed explanation-1: -Light-year is the distance light travels in one year. Light zips through interstellar space at 186, 000 miles (300, 000 kilometers) per second and 5.88 trillion miles (9.46 trillion kilometers) per year.
Detailed explanation-2: -For the same reason, astronomers don’t use miles to measure vast distances in space. Instead, they use light-years: the distance that light travels in a year. That makes Proxima Centauri, the closest known star to the Sun, 4.28 light-years away; that’s a lot easier than saying 24, 000, 000, 000, 000, 000 miles.
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