Astronomy Picture of the Day . ... 6.03.2012 . ... In this beautiful celestial still life composed with a cosmic brush, dusty nebula NGC 2170 shines near the image center. ... Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured above are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation of the Unicorn ( Monoceros ). ... NASA Web Site Statements, Warnings, and Disclaimers . ...