CALIFORNIA, U.S.A — A three-year-long supernova is making astronomers reconsider how stars form and die.<br /><br />Designated as iPTF14hls, the supernova was first detected in 2014. It located is half a billion light years from Earth in the Ursa Major constellation.<br /><br />Scientists theorize the original star was so hot it may've created antimatter at its core, reports the BBC, forcing it to become unstable and explode. <br /><br />This could lead to the supernova repeating until it eventually tears a hole in space-time and becomes a black hole.<br /><br />Findings concerning the supernova were described in the journal Nature.
