Layers

Today's Astronomy Picture of the Day is a beautiful shot of emission nebula (NGC 6188 and NGC 6164) in the southern constellation of Ara. Emission nebula have always been my favorite sights, especially for long-term exposure shots, ever since I first came across them. It is amazing to think of the beautiful (and blurry; and often only black-and-white) photographs of my misbegotten youth vs. the beautifully textured and detailed photographs of today.