Nearby Supernova Should Be Common, So Why Aren't They?

Two supernovae should appear in our galaxy every century, so why have we not seen one in 400 years?

How Do The Most Massive Stars Die: Supernova, Hypernova, Or Direct Collapse?

If there are so many stars in the Universe, why are Supernovas so rare? - Quora

Exploring the Wonders of Supernovae

Are there too few Supernova Remnants to support the Milky Way being billions of years old? - Quora

Why do we not see more supernova in the sky given there are so many stars visible? How come we don't see more than we do? - Quora

The largest supernova in a decade just exploded. I was lucky enough to photograph it. : r/Damnthatsinteresting

Using supernovae to measure distances

Why Do Stars Explode? Museum of Science, Boston

There Should be a few Supernovae in the Milky Way Every Century, but we've Only Seen 5 in the Last 1000 Years. Why? - Universe Today

I photographed a star exploding … 40,000 years after it actually blew up. This is a supernova remnant called the Spaghetti Nebula. [OC] : r/space

Ultraviolet flash detected by astronomers after 'peculiar' supernova

A supernova in miniature: Bizarre micronovas are exploding in small stars, astronomers say

Whoa! Mini-Supernovas Discovered