Sunlight reaches Earth in 8 min.
Light can be used by Solar Panels to produce electricity.
Photosynthesis: Light is essential for the process of photosynthesis in plants.
Humans get Vitamin D from Sunlight.
UV rays, Infra Red rays , Gamma radiations are few harmful radiations of light.
One light year is the distance travelled by light in one year in vacum. It is appoximately 9 trillion km.
Light cannot escape from Blackholes because black holes has infinite gravity.
Light travels at an incredible speed of approximately 299,792 kilometers per second (186,282 miles per second) in a vacuum.