NGC 2359: Thor’s Helmet
2019 February 16 NGC 2359: Thor’s Helmet Image Credit & Copyright: Ignacio Diaz Bobillo Explanation: NGC 2359 is a helmet-shaped cosmic cloud with wing-like appendages popularly called Thor’s Helmet. Heroically sized even for a Norse god, Thor’s Helmet is about 30 light-years across. In fact, the helmet is more like an interstellar bubb...