Cold cosmic mystery solved: Largest known structure in the universe leaves its imprint on CMB radiation
Monday, April 20, 2015 - 03:20
in Astronomy & Space
In 2004, astronomers examining a map of the radiation leftover from the Big Bang (the cosmic microwave background, or CMB) discovered the Cold Spot, a larger-than-expected unusually cold area of the sky. The physics surrounding the Big Bang theory predicts warmer and cooler spots of various sizes in the infant universe, but a spot this large and this cold was unexpected.