Jan 15, 2016 1:30 pm0 views
The Atlantic (Jan. 14) -- What if history's brightest supernova exploded in Earth's backyard? In 1996, grad student Brian Fields and his adviser listed out the radioactive elements blasted into space by a supernova that you might be able hunt down on Earth. A supernova close enough to leave a trace, they reasoned, might also have been close enough to pose a serious threat to life. “If we were really lucky we could connect it to a mass extinction,” says Fields, now an astronomy and physics professor at Illinois. “That’s sort of the Holy Grail, or the unholy grail, of the field.”