[caption id="attachment_127" align="alignright" width="248"]
A stack of 776 microwave background patches corresponding to cosmic voids. A cold spot is seen suggesting that the photons are cooled by voids. The temperature scale is in microkelvin. Figure courtesy of
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A stack of 776 microwave background patches corresponding to cosmic voids. A cold spot is seen suggesting that the photons are cooled by voids. The temperature scale is in microkelvin. Figure courtesy of 
