First 'bone' of the Milky Way identified
Tuesday, January 8, 2013 - 17:00
in Astronomy & Space
(Phys.org)—Our Milky Way is a spiral galaxy—a pinwheel-shaped collection of stars, gas and dust. It has a central bar and two major spiral arms that wrap around its disk. Since we view the Milky Way from the inside, its exact structure is difficult to determine.