A light-year is how astronomers measure distance in space. It’s defined by how far a beam of light peregrinates in one year – a distance of six trillion miles. Cerebrate of it as the more sizably voluminous, badder cousin of the inch, the mile, the kilometer, and the furlong. If you relish to keep up with what’s going on in astronomy, it’s worth spending scarcely of time understanding what the deal is with this hysterical unit of quantification. Your answer is C 6 x 10 12
