If you missed the White House Science Fair today -- which you probably did -- you can see the rebroadcast below, featuring hosts LeVar Burton and Bill Nye. 

Here's why this is worth watching. In case you were worried about the state of science education in the U.S., this video will give you a burst of optimism. 

The young innovators gathered on the White House lawn have developed projects that involve biofuels, brain-controlled robotic arms, a robot that paints with watercolors, artificial neural networks, improving the experience of music for people with hearing loss through the use of tactile sound, early detection systems for cancer and much more.

Watch here: