reference|Author=Taylor, J.H. & Cordes, J.M|Journal=Astrophysical Journal|Vo File:Milky_Way_Spiral_Arm.svg licensed with Cc-by-sa-3.0-migrated, GFDL 2009-05-05T14:02:01Z...
DescriptionMilky Way Spiral Arms.png → Milky Way Spiral Arm (other versions) Date 10 March 2005 Source Made from publicly available data; released under...
changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you...
