Great Cold Spot Points to Largest Void in the Universe

The Cosmic Microwave Background Radiation (CMBR) started out as static in a communications lab in New Jersey where it was discovered by Penzias and Wilson in 1964.  Since then it has proven to be an extremely powerful tool for determining the structure and age of the Universe.  It helps us constrain cosmological models, gives us insight into the inflationary period of the Universe, and tells us where to look for the largest and smallest structures of the Universe. The temperature fluctuations seen in the CMBR are so small they can only be quantified in millionths of a degree.  Yet these...