New Clues in the CMB Cold (Spot) Case

New Clues in the CMB Cold (Spot) Case

20 years ago, WMAP discovered the anomalous Cold Spot in the CMB. Researchers have since been puzzling over its existence, but the case of the Cold Spot still remains open. Recently, researchers have proposed a theory that the foregrounds of a galaxy supergroup could be responsible for the Cold Spot. Could these foregrounds really be the culprit?