how long does it take a ray of light to reach earth
The surface of the Sun is cool compared with the core, only 10,000 degrees Fahrenheit. This fusion process not only heats the Sun, it makes the sunlight we see here on Earth. This sunlight travels the speed of light which is 186,282 miles per second or 299,792,458 meters per second. This means the light from the Sun takes 8.4 minutes to travel 93 million miles to Earth.