<ref>[http://arxiv.org/abs/0805.3695 "An Imprint of Super-Structures on the Microwave Background due to the Integrated Sachs-Wolfe Effect"], ApJLApJ, submitted683, L99</ref><ref>[http://www.ifa.hawaii.edu/cosmowave/supervoids Dark Energy and the Imprint of Super-Structures on the Microwave Background]</ref> found that supervoids and [[superclusters]] in the [[Sloan Digital Sky Survey|SDSS]] Luminous Red Galaxy catalog produce cold and hot spots (respectively) on the CMB, highly significant when the signals from 50 superclusters and 50 supervoids are added together. This iscould arguablybe theconsidered clearesta detection so far of the [[Integrated Sachs-Wolfe]] (ISW) effect, andcaused provides evidence ofby [[dark energy]] accelerating the expansion of the universe., but in fact it's surprisingly strong to be ISW. This finding supportsis relevant to the supervoid explanation for the Cold Spot because it showssupports thatthe idea of supervoids can havehaving a measurable effect on the CMB,. but the support is indirect because the Cold Spot is not in the [[SDSS]] survey.
