The cosmic swirl of giant waves in an enormous reservoir of glowing hot gas are visible in this enhanced X-ray image from the Chandra Observatory. The frame spans over 1 million light-years across the center of the nearby Perseus Galaxy Cluster. With temperatures in the tens of millions of degrees, the gas glows brightly in X-rays. Computer simulations can reproduce details of the structures sloshing through the Perseus cluster’s X-ray hot gas, including the remarkable concave bay seen below and left of center. About 200,000 light-years across, twice the size of the Milky Way, the bay’s formation indicates that Perseus itself was likely grazed by a smaller galaxy cluster billions of years ago.
Image Credit: NASA, CXC, GSFC, Stephen Walker, et al.