The speed of light is roughly 882 thousand times the speed of sound. -- Sound takes about 4.7 seconds to cover 1 mile. -- Light takes about 0.0000054 second to cover 1 mile. -- In the time it takes sound to travel one mile, light travels 881,741 miles. During a thunderstorm, you see the lightning before you hear the thunder, even though they're caused by the same event. Another clue to an easy answer: Nothing is faster than the speed of light.