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.
Globe
The Globe Program: Air Quality Module
In this storybook, the GLOBE Kids investigate colors in the sky and learn how air pollution affects sky color and our health. Learning activities engage students in describing sky color and conditions in the atmosphere, creating a model...