Bringing the Universe to America's Classrooms
Explore How Light Is Needed to See Things

Where Does Light Come From?

Light from the Sun makes the sky bright during daytime. The sky is dark when there is no Sun. 

Can you see the same things during the daytime and nighttime?
 
A boy is smiling as he sits high up on a playground jungle gym with his legs dangling down. A bright Sun shines in the clear blue sky above the jungle gym.

Produced by