UNIVERSE
OVERVIEW OF THE SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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light-year
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inertia
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time year
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astronomical unit
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Detailed explanation-1: -It travels at 186, 000 miles per second (300, 000 km/sec). So, a light-year is 5.88 trillion miles (9.46 trillion km).
Detailed explanation-2: -It is the distance that light can travel in one year. Light moves at a velocity of about 300, 000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9, 500, 000, 000, 000 kilometers.
Detailed explanation-3: -A light-year is nearly 9.5 trillion kilometers. This is an unbelievably large number that is so huge, no one can possibly comprehend just how large it is compared to a walk to the local store, or a drive to Grandma’s! Even by astronomical standards, astronomers rarely work with numbers this large.