November 1, 2011
Today’s "Cool Photo of the Week" is a nighttime view of the Midwestern United States, captured from the International Space Station. From space, astronauts can see many different kinds of lights in the night skies.
The artificial light created by humans is easily recognizable by its yellowish tone. The burst of bright white light in the upper right hand corner of the photograph is probably lightning. And the green glow rimming the edge of the planet is the Aurora Borealis, or Northern Lights.
If you look closely, there is even more that you can see in this view. Look at Chicago. Just to the right of Chicago’s big patch of lights, there is a completely dark section. Why do the lights stop so suddenly? Because you are looking at one of the Great Lakes, Lake Michigan.

Good Luck!
Photo courtesy of Cloud Imaging and Particle Size Experiment data processing team at the University of Colorado Laboratory for Atmospheric and Space Physics.
Posted by: Seymour Simon




