AT2018cow erupted in or near a galaxy known as CGCG 137-068, which is located about 200 million light-years away in the constellation Hercules. This zoomed-in image shows the location of the “Cow” in the galaxy.Credits: Sloan Digital Sky Survey A brief and unusual flash spotted in the night sky on… Read more“Holy Cow! Mysterious Blast Studied with NASA Telescopes”