universetoday.com
How Far is a Light Year? - Universe Today
A light year is a standard of measurement used by astronomers to describe huge distances in the Universe. The nearest star is 4.22 light years away. The center of the Milky Way is about 26,000 light years away. But how far is 1 light year? A light year is the distance that light travels in … Continue reading "How Far is a Light Year?"