Pan-STARRS finds a 'lost' supernova
Thursday, March 7, 2013 - 16:40
in Astronomy & Space
(Phys.org) —The star Eta Carinae is ready to blow. 170 years ago, this 100-solar-mass object belched out several suns' worth of gas in an eruption that made it the second-brightest star after Sirius. That was just a precursor to the main event, since it will eventually go supernova.