The Impact of a Not Too Distant Supernova Explosion on Earth

Nishant Duhan says that a not too distant supernova explosion can cause an ice age on earth. The closest star we have is the Alpha Centauri, Proxima Centauri system which is about 4.6 years away from earth. By the time it reaches the solar system, the outer contours of the solar system would have kind of dissipated and the shock won't be that much," he said. "We do have other astrophysical objects like quasars for instance"