Astrophysics

A Stellar Collision Triggers a Supernova Explosion

Fast-moving debris from a supernova explosion triggered by a stellar collision crashes into material thrown out earlier, and the shocks cause bright radio emission seen by the VLA. Credit: Bill Saxton, NRAO/AUI/NSFAstronomers have found remarkable evidence that a black hole or neutron star spiraled its way right into the center of a companion star...