The nearest major galaxy to our own Milky Way, with hundreds of billions of stars, here's an amazing shot of the Andromeda galaxy in fine detail, as viewed by the Herschel space observatory. The red color in the image points to some of the coldest dust in the galaxy -- a few tens of degrees above absolute zero. The warmer stars are in blue.
March 28, 2013 11:33 AM PDT
Photo by: ESA/PACS & SPIRE Consortium, O. Krause, HSC, H. Linz.