Our Galaxy's Central Molecular Zone

Explanation: The central region of our Milky Way Galaxy is a mysterious and complex place. Pictured here in radio and infrared light, the galaxy's central square degree is highlighted in fine detail. The region is known as the Central Molecular Zone . While much of the extended emission is due to dense gas laced with molecules, also seen are emission nebulas lit up by massive young stars, glowing supernova remnants , and the curving Galactic Center Radio Arc in purple. The identity and root cause for many other features remains unknown. Besides a massive black hole named Sgr A* , the Galactic Center houses the galaxy's most active star forming region. This image is not just interesting scientifically . It's esthetic beauty won first prize this year in the AUI/NRAO Image Contest .