The Southern Cliff in the Lagoon

Explanation: Undulating bright ridges and dusty clouds cross this close-up of the nearby star forming region M8 , also known as the Lagoon Nebula . A sharp, false-color composite of narrow band visible and broad band near-infrared data from the 8-meter Gemini South Telescope , the entire view spans about 20 light-years through a region of the nebula sometimes called the Southern Cliff. The highly detailed image explores the association of many newborn stars imbedded in the tips of the bright-rimmed clouds and Herbig-Haro objects . Abundant in star-forming regions, Herbig-Haro objects are produced as powerful jets emitted by young stars in the process of formation heat the surrounding clouds of gas and dust . The cosmic Lagoon is found some 5,000 light-years away toward constellation Sagittarius and the center of our Milky Way Galaxy. ( Editor's Note: For location and scale, check out this image superimposing the close-up region shown in today's APOD on the larger Lagoon Nebula . Scale image is courtesy R. Barbá.)