When a star much more massive than the Sun exhausts its fuel, what results from its catastrophic explosion?

Answer

A supernova remnant

The violent explosion of a massive star that exhausts its fuel results in a supernova, creating a glowing, expanding shell of debris called a supernova remnant.

When a star much more massive than the Sun exhausts its fuel, what results from its catastrophic explosion?
Spaceastronomynebulacosmic cloud