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- Supernova - Wikipedia
A supernova (pl : supernovae) is a powerful and luminous explosion of a star A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion
- Supernova | Definition, Types, Facts | Britannica
supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level The term supernova is derived from nova (Latin: “new”), the name for another type of exploding star
- What Is a Supernova? | NASA Space Place – NASA Science for Kids
A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe— black holes The Crab Nebula is the leftover, or remnant, of a massive star in our Milky Way that died 6,500 light-years away
- What Is a Supernova? - Space
A supernova is what happens when a star has reached the end of its life and explodes in a brilliant burst of light
- What is a supernova? - EarthSky
A supernova is a star's colossal explosion at the end of its life, which can outshine its entire galaxy Read about causes and types of supernovae here
- Supernova - ESA Hubble
Supernova explosions are spectacular exceptions to that rule Several different pathways can lead to a supernova explosion, one of which is the death of a supermassive star
- What is a Supernova? The Explosive Death of Stars and Its Cosmic Impact
When certain stars die, they do not simply fade away They explode This tremendous stellar explosion is known as a supernova It is one of the most powerful phenomena in the universe, capable of releasing more energy in a single moment than an entire galaxy emits over long periods of time
- What is a supernova? | BBC Sky at Night Magazine
When large stars reach the end of their lives they explode in a supernova, one of the most sudden and violent events in the sky Large stars live fast and die young They, like stars of all sizes, create light by converting hydrogen to helium in a process known as nuclear fusion
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