• Technology

    Understanding Lightyears – How Many Years are in a Lightyear?

    Definition of a Lightyear and its Importance in Astronomy A lightyear is a unit of distance used in astronomy to measure vast distances across space. It is the distance that light travels in one year, which is approximately 9.46 trillion kilometers (5.88 trillion miles). This unit of measurement is essential in astronomy because it allows astronomers to calculate distances across…

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