This image snapped by @NASAChandraxray contains an exceptionally massive spiral galaxy.

A much smaller galaxy is visible near the center of this image. This galaxy passed through NGC 6872 more than 100 million years ago—helping give it the unusual shape it has today. Credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; Image Processing: NASA/CXC/SAO/J. Schmidt, L. Frattare