The white light of the sun is made up of all the colours of the rainbow. And when it reaches the Earth, those individual colours are revealed. Photons from the sun rain down and enter water droplets.

The light from the Sun looks white but it is actually a combination of many different colours of light. We can see this by splitting the sunlight using this glass prism. The colours are the same ...

Ever since the winter solstice on Dec. 21, daylight in Evanston has been slowly but steadily increasing, and on Jan. 28, the sun will set after 5 p.m., ...