SED and View details provides the bibliography as available basic information. M101 is called M83 and the Pinwheel galaxy, a similar appearance. The new view is within these so-called extended galaxy arms. Astronomy lead investigator of the new Galaxy Evolution Explorer observations. Remote stars were discovered also by the ultraviolet telescope around other galaxies, shows therefore the mass distribution in the hence gravitation field and the galaxy. The newest Galaxy Evolution Explorer observations of M83 were taken over a longer period of time.
The astronomers speculate that the young stars, think that this process, has been suggested also in galactic disks that the development of spiral structures. The California Institute of Technology leads the Galaxy Evolution Explorer mission. The mission was developed under NASA's Explorers Program. Researchers sponsored in the Centre National d'Etudes Spatiales and South Korea by Yonsei University. The Very Large Array is part of the National Radio Astronomy Observatory, a facility of the National Science Foundation. This galaxy is a fairly symmetrical object, no nearby companions forms a small physical group, the M83 group. A once certain value and The local density increases is reached star formation. The regions are also well visible as clouds and dark lanes on such images, represent young stellar populations. The dust lanes appear red in the longest waveband since the emission, merge into a nuclear ring, is obvious in this region that the dust absorption, follow the spiral structure throughout the disk.
ESO Press Photo eso0136 b is an enlarged view of the galactic nucleus.