Herschel paints new story of galaxy evolution
Tuesday, September 13, 2011 - 11:32
in Astronomy & Space
(PhysOrg.com) -- ESA's Herschel infrared space observatory has discovered that galaxies do not need to collide with each other to drive vigorous star birth. The finding overturns this long-held assumption and paints a more stately picture of how galaxies evolve.