Scott Air Force Base, IL Demographic Information *. There is no Census data for the city of SCOTT AIR FORCE BASE, IL. We have pulled information for the ZIP Code 62225 instead.
A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers.
Hint: A light-year is a unit of distance, not time. A light-year is how astronomers measure distance in space. Itâs defined by how far a beam of light travels in one year â a distance of six trillion miles.Think of it as the bigger, badder cousin of the inch, the mile, the kilometer, and the furlong.tâs defined by how far a beam of light travels in one year â a distance of six trillion miles. Think of it as the bigger, badder cousin of the inch, the mile, the kilometer, and the furlong.