The APOD archive contains the largest collection of annotated astronomical images on the internet. In real life, Bob and Jerry are two professional astronomers who spend most of their time researching the universe. They are two married, mild, and lazy guys who might otherwise appear normal to an unsuspecting guest. Together, they have found new and unusual ways of annoying their wives such as staging astronomical debates.
Most people are surprised to learn that they have developed the perfect random number generator.
The above APOD Banner Graphic is courtesy of Nick Zivanovic of the Calumet Astronomical Society . Nick grants permission for use of this banner on other websites. Some of the images are copyrighted and to use these pictures publicly or commercially one must write to the owners for permission. NASA images are in the public domain, official guidelines for their use can be found here . Neither NASA nor APOD can grant permission to use copyrighted images.