... Credit Copyright: WMAP Science Team , NASA Explanation: How could part of the early universe be so cold? No one is sure, and many astronomers now think that the CMB Cold Spot on the cosmic microwave background (CMB) radiation is not particularly noteworthy. ... Quite possibly, though, even a more mundane universe might be expected to show such a statistical peculiarity , and so explanations of the CMB Cold Spot like these might say more about human imagination than the early universe. ...