NGC 5331 is a pair of interacting galaxies with their spiral arms beginning to touch. There is a blue trail which appears in the image flowing to the right of the system. NGC 5331 is very bright in the infrared, with about a hundred thousand million times the luminosity of the Sun. It is located in the constellation Virgo, the Maiden, about 450 million light-years away from Earth.
This image is part of a large collection of 59 images of merging galaxies taken by the Hubble Space Telescope and released on the occasion of its 18th anniversary on 24 April 2008.