A supernova is not just any cosmic explosion, but rather is distinguished as the largest explosion that happens in space. Not every star will end this way.
Astronomers Watch a Star Die and Then Explode as a Supernova – For the Very First Time
Weird Supernova Challenges Scientists' Ideas About Stars
Will a supernova explosion visible from Earth happen in our lifetime?
Which Milky Way Star Will Explode Next, and How Will it Impact Earth?
Observers caught these stars going supernova
ESO Supernova Exhibition — How dangerous are supernova explosions?
Supernova forensics: Eight years later, an explosion far out in space is still revealing secrets about the lives of stars
Watch a red supergiant star go supernova in this stunning animation
Is Earth in danger if Betelgeuse goes supernova? - BBC Sky at Night Magazine
What If Earth's Nearest Star System Explodes?
Supernova - Wikipedia
This Is How We'd All Die Instantly If The Sun Suddenly Went Supernova
The Biggest Bang Theory: Astronomers Confirm a New Type of Supernova
Huge, unusually powerful supernova explosion in space detected by scientists
The Truth About The New Supernova: It Exploded 20 Million Years Ago