Irregular Galaxy NGC 4449 Caldwell 21 532 Ml Water Bottle

Author : NASA, ESA, A. Aloisi (STScI/ESA), and The Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration. Source http://hubblesite.org/newscenter/archive/releases/2007/26/image/a/ (direct link: http://imgsrc.hubblesite.org/hu/db/images/hs-2007-26-a-full_jpg.jpg) This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. Date: November 2005 (from: http://commons.wikimedia.org/wiki/File:Starburst_in_NGC_4449_%28captured_by_the_Hubble_Space_Telescope%29.jpg) Irregular Galaxy NGC 4449 Caldwell 21