New insights on how spiral galaxies get their arms
Tuesday, April 2, 2013 - 09:30
in Astronomy & Space
(Phys.org) —Spiral galaxies are some of the most beautiful and photogenic residents of the universe. Our own Milky Way is a spiral. Our solar system and Earth reside somewhere near one of its filamentous arms. And nearly 70 percent of the galaxies closest to the Milky Way are spirals.