Merging Quasar and Galaxy
Depicts: PKS 2349
Copyright: John Bahcall, Institute for Advanced Study, NASA
This Hubble Space Telescope image shows evidence for a merger between a quasar and a companion galaxy. This surprising result might require theorists to rethink their explanations for the nature of quasars, the most energetic objects in the universe.
Last Update: 1 September 2019