800×800 change difficult message Published January 20, 2013 at 800 × 800 in Milky Way Galactic Center Evolutionary Bubbles & Outflows ← Previous Next → [ File # csp10679124, License # 2244546 ] Licensed through http://www.canstockphoto.com in accordance with the End User License Agreement (http://www.canstockphoto.com/legal.php) (c) Can Stock Photo Inc. / iqoncept