The Doomed Star Eta Carinae...
Boom! You're looking at the doomed binary star... ...ghtened significantly like it was going supernova , but actually, it didn't really explode... ...ta Carianae is expected to explode in a supernova or even hypernova sometime in the futur...
http://www.neatorama.com/2012/09/15/The-Doomed-Star-Eta-Carinae/
