👉✨ Light from a star 31.7 light-years away takes about 1 billion seconds to reach Earth — and that’s far more astonishing than it first appears. A light-year is the distance light travels in one year. Because light moves incredibly fast — about 300,000 kilometers (186,000 miles) per second — it covers roughly 9.46 trillion kilometers in a single year. So if a star is 31.7 light-years away, its light needs 31.7 years to arrive here. Here’s the amazing part: 31.7 years is almost exactly equal to
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👉✨ Light from a star 31.7 light-years away takes about 1 billion second…
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A light year is the distance that light can travel in one year. 1 light year = 9,460,000,000,000 km. Express one light year in scientific notation. The average distance between Earth - Mathematics | Shaalaa.com
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