/oss/taxonomy/term/2438/all en /oss/article/did-you-know/light-year <p>Is not a unit of time. Although the term “year” factors into the nomenclature, a light year actually measures extremely long distances and is used in mapping galaxies, planets, stars, and other astronomical phenomena. NASA states that light years are equivalent to about 9,500,000,000,000 kilometers and stem from how quickly a beam of light will travel in the span of a year.</p> Thu, 25 May 2017 00:11:39 +0000 OSS 2490 at /oss