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1. spaceplace.nasa.gov › supernova › enWhat Is a Supernova? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov › supernova › en

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   Sep 1, 2024 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star.

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   What is a supernova in physics?

   • A supernova ( pl.: supernovae or supernovas) 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 - Wikipedia

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   What is a supernova explosion?

   • Each blast is the extremely bright, super-powerful explosion of a star. A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most energetic supernova explosions ever recorded.

   What Is a Supernova? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/supernova/en/

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   Is a supernova a new star?

   • Now we know that a supernova is not a new star, but – quite the opposite – an existing one which has reached the end of its life. And we know that novae – the less powerful flare-ups – mark the location of a star system that might flare up again. Supernovae can have different causes, but all involve the sudden detonation of a star.

   What is a supernova? - EarthSky

   earthsky.org/astronomy-essentials/definition-what-is-a-supernova/

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   What is the classification of a supernova?

   • The supernova classification type is closely tied to the type of progenitor star at the time of the collapse. The occurrence of each type of supernova depends on the star's metallicity, since this affects the strength of the stellar wind and thereby the rate at which the star loses mass. [ 184]

   Supernova - Wikipedia

   en.wikipedia.org/wiki/Supernova

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3. www.britannica.com › science › supernovaSupernova | Definition, Types, & Facts | Britannica

   www.britannica.com › science › supernova

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   Jul 26, 2024 · 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. Supernovae resemble novae in several respects.

   • Author: The Editors of Encyclopaedia Britannica

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4. Videos

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     The Incredible Secrets of How Supernovas Are Formed | How the Universe Works | Science Channel

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     earthsky.org

     What is a supernova?

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     Less Than Five - What is a Supernova?

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5. en.wikipedia.org › wiki › SupernovaSupernova - Wikipedia

   en.wikipedia.org › wiki › Supernova

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   A supernova (pl.: supernovae or supernovas) 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.

6. earthsky.org › definition-what-is-a-supernovaWhat is a supernova? - EarthSky

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   Nov 12, 2020 · A supernova is the name given to the cataclysmic explosion of a massive star at the end of its life. It can emit more energy in a few seconds than our sun will radiate in its lifetime of...

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7. www.space.com › 6638-supernovaWhat is a supernova? | Space

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   Jun 19, 2023 · A supernova is what happens when a star has reached the end of its life and explodes in a brilliant burst of light. Supernovas can briefly outshine entire...

8. www.scienceabc.com › what-is-a-supernovaSupernova: Definition, Facts And Significance - Science ABC

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   Oct 19, 2023 · A supernova is a star that has reached the end of its life and has exploded. The light from a supernova can be seen from billions of light years away and is so bright that it can outshine an entire galaxy.

9. www.pbs.org › newshour › scienceHarvard Astrophysicist Answers: What Is a Supernova?

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   Nov 15, 2010 · A supernova explosion is something where you see a star that you hadn't seen before suddenly turn billions of times brighter than it was," Kirshner said.