TeachEngineering
Teach Engineering: Quantum Dots and Colors
Students are introduced to the physical concept of the colors of rainbows as light energy in the form of waves with distinct wavelengths, but in a different manner than traditional kaleidoscopes. Looking at different quantum dot...
Space Telescope Science Institute
Hubble Site: Behind the Pictures
At this site from HubbleSite, you can take a peek behind the scenes and discover the meaning of color in Hubble Images.