Kavli Institute for Particle Astrophysics and Cosmology (KIPAC)

A study led by KIPAC members and using Fermi/LAT data has uncovered compelling evidence that two neighboring supernova remnants (SNRs), the debris left behind after stars explode, are actually the remains of massive companion stars that once orbited each other before exploding tens to hundreds of thousands of years apart. The study has been published in Nature Communications.