|  |  | APOD: Nearby Galaxies apod.nasa.gov — Large galaxies and faint nebula highlight this deep image of the M81 Group of galaxies. First and foremost in the above wide-angle 12-hour exposure is the grand design spiral galaxy M81, the largest galaxy visible in the image. M81 is gravitationally interacting with M82 just below it,a big galaxy with an unusual halo of filamentary red-glowing gasMore... (Space) Comments Email Added 2008-05-12 11:34:40 optimusprime01