nov 212012
Bridge of Hot Gas Links Two Galaxy Clusters

  ESA’s Planck space telescope has made the first conclusive detection of a bridge of hot gas connecting a pair of galaxy clusters across 10 million light-years of intergalactic space. A bridge of hot gas between galaxy clusters Abell 399 and Abell 401. Credit: Sunyaev-Zel’dovich effect (orange): ESA & Planck Collaboration; optical image: STScI Digitized [continue reading]