Optical image of SPT-CLJ2344-4243 (Phoenix Cluster)
NASA/STScI
<a rel="nofollow" class="external free" href="http://chandra.harvard.edu/photo/2015/phoenix/">http://chandra.harvard.edu/photo/2015/phoenix/</a> (<a rel="nofollow" class="external text" href="https://chandra.harvard.edu/photo/2015/phoenix/phoenix_optical.tif">image link</a>)