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.
How many miles per hour does light travel? Light travels at a whopping 186,000 miles per second or about  669,600,000 miles per hour, to answer your question.    This is very fast, but it still takes the light â¦from the sun eight  minutes to reach us, and there is a big difference.    Light from the next nearest star would take at least 4 hours to get  here.