X-ray image of Messier 82, also known as the M82, the Cigar Galaxy and NGC 3034.
Located in the constellation Ursa Major at a distance of about 12 million light-years, it is the nearest and one of the most active starburst galaxies, i.e. it shows an exceptionally high rate of star formation. M82 is interacting gravitationally with its neighbour, the spiral galaxy Messier 81, which is most probably the cause for the violent starburst activity in its circumnuclear region.
The active star formation taking place in its interior and its effect on the gas and dust in its interstellar medium can be observed very well from Earth. This makes M82 is one of the best-studied galaxies in the sky.
The image shows plumes of hot gas glowing in X-rays bursting out of the galactic disk (in blue), resulting from very intense bursts of star formation in the circumnuclear region. It is composed of several different XMM-Newton observations of Messier 82, adding up to 52.5 hours of observing time in total. It includes the special observation for IYA2009.