Via the Knight Science Journalism Tracker:
NASA‘s satellite SWIFT, built for detecting and analyzing Gamma-Ray-Bursts (GRB), recently detected a GRB and alerted scientists all over the world who pointed their whole weaponry to the spotted location and yes! There was a supernova. They were able to observe the 40-minute event, which occurred some 440-million years ago, in it’s full length and beauty.
GRBs were linked to supernovae for quite some time, now the gathered data seems to support the theory even more.