Lars Bildsten, professor at UCSB's Kavli Institute for Theoretical Physics (KITP), and colleagues, predicted a new type of supernova in distant galaxies that would be fainter than most and would rise and fall in brightness in only a few weeks. (kavlifoundation.org)
Other discoveries in the Milky Way detailed in the special edition include the sharpest image yet of a gamma ray source — a nearby supernova remnant — which will enable researchers to study this object at finer scale than before — and three new «gamma ray shells» that are possibly examples of a new type of supernova remnant. (scimex.org)
Although this looks like a single nebula, NSF's Gemini South Observatory revealed it is actually two separate gas and dust clouds formed by different types of supernova explosions. (discovermagazine.com)