A super-supernova could happen in our neighborhood
Astronomers have discovered a new kind of super-luminous supernova that can be a hundred times as bright as an ordinary supernova - which are already some of the brightest lights in the universe.
These super bright exploding stars were thought to only occur in dwarf galaxies, which are mostly made of light elements like hydrogen and helium. But this one was found in a large spiral galaxy similar to our our own.
- Research paper in Astrophysical Journal Letters - The superluminous supernova SN 2017egm in the nearby galaxy NGC 3191: a metal-rich environment can support a typical SLSN evolution
This suggests that one of these super-bright supernovae might happen in our galactic neighborhood. If that were to happen, it would be brighter than the full moon, and easily visible in daylight.