Question

A light year is what

Answer 1

A light year is a unit of distance that represents how far light travels in one year. Since light moves at a speed of approximately 299,792 kilometers per second (or about 186,282 miles per second), a light year is equivalent to about 9.46 trillion kilometers (or about 5.88 trillion miles). This measurement is commonly used in astronomy to convey distances between stars and galaxies, as these distances are immense and traditional units like kilometers or miles might be less practical.