The NGC 3576 Nebula . ... Credit Copyright: Ken Crawford ( Rancho Del Sol Observatory ), Macedon Ranges Observatory Explanation: An intriguing and beautiful nebula, NGC 3576 drifts through the Sagittarius arm of our spiral Milky Way Galaxy . Within the region, episodes of star formation are thought to contribute to the complex and suggestive shapes. ... For example , the two condensing dark clouds near the top of the picture offer potential sites for the formation of new stars. ...