October 23, 2013 The Jellyfish Nebula, a supernova remnant in Gemini  Image Credit & Copyright: Adam Block/Mount Lemmon SkyCenter/University of Arizona (http://skycenter.arizona.edu/gallery)/Tom Bash and John Fox/NOAO/AURA/NSF The Jellyfish Nebula (also known as IC 443 and Sh2-248) is a large supernova remnant of some 70 light-years across that lies near the star Eta Geminorum, roughly 5,000 [continue reading]