jul 182013
Anne's Image of the Day: Smith's Cloud

July 18, 2013 Smith’s Cloud, a cloud of hydrogen gas in Aquila Image Credit: Bill Saxton, NRAO/AUI/NSF Smith’s Cloud is a huge cloud of hydrogen gas that measures some 9,800 light-years by 3,300 light-years, located between 36,000 and 45,000 light-years away from Earth in the northern constellation of Aquila (the Eagle). It has a mass [continue reading]