We are very familiar with the visible light spectrum. From violets to reds, it makes up the colors of our world that we see and interact with everyday. But visible light makes up a tiny fraction of the whole electromagnetic spectrum that exists in our universe, from the short wave lengths of gamma radiation to the long wavelengths of radio waves. Our eyes are designed only to detect visible light, so how can we see the unseen through a thermal imaging camera? Dr. Michelle Thaller from the Spitzer Science Center answers just that in this easy to follow video explaining all about infrared light, night vision cameras, electro-magnetic radiation, and infrared astronomy. This is a great video to share with your kids!