Comparison of the filaments with the red, hard X-ray emission from the intra-cluster medium, showing the hot gas bubbles that created the filaments in their wake. The image was formed from the red image, subtracting continuum and stellar-sources using SExtractor. The X-ray data comes from the Chandra X-ray Observatory. Credit: A.C. Fabian/R.M. Johnstone/J.S. Sanders/C.J. Conselice/C.S. Crawford/J,S, Gallagher III/E.Zweibel
