With the passing of Chandra's 15th anniversary, the Chandra Data Archive, which houses all of the mission's data, continues to grow each successive year.  These images - that include a wide range of astronomical objects -- combine X-rays from Chandra's archive with data from other telescopes. This technique of creating "multi wavelength" images allows scientists and the public to see how X-rays fit with data of other types of light, such as optical, radio, and infrared.
NASA/STScI
<a rel="nofollow" class="external free" href="http://chandra.si.edu/photo/2014/archives/archives_mrk573_optical.jpg">http://chandra.si.edu/photo/2014/archives/archives_mrk573_optical.jpg</a>