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- Dictionarysupernova/ˈsuːpəˌnəʊvə/
noun
- 1. a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
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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.
Jun 13, 2024 · 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. Image credit: NASA/CXC/M.Weiss.
Jun 15, 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.
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...
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...
SUPERNOVA definition: 1. a star that has exploded, strongly increasing its brightness for a few months 2. a star that has…. Learn more.
Apr 5, 2024 · A supernova is a powerful and catastrophic event that occurs when a star reaches the end of its life cycle. During a supernova, a massive star explodes, releasing an immense amount of energy and creating a bright, luminous explosion that can outshine an entire galaxy for a brief period of time.
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. Supernovae are important because they help create new elements and distribute them throughout the universe.
3 min read. Some stars burn out instead of fading. These stars end their evolutions in massive cosmic explosions known as supernovae. When supernovae explode, they jettison matter into space at...
Mar 20, 2024 · A supernova is a powerful and catastrophic event that occurs when a star explodes, releasing an immense amount of energy into space. This explosion can briefly outshine an entire galaxy and is one of the most energetic events in the universe.
