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Supernova - Wikipedia
https://en.wikipedia.org/wiki/Supernova
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.
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What Is a Supernova? | NASA Space Place – NASA Science for …
https://spaceplace.nasa.gov/supernova/en/
3 days ago · 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.
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Supernova | Definition, Types, & Facts | Britannica
https://www.britannica.com/science/supernova
Mar 9, 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.
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What is a supernova? | Space
https://www.space.com/6638-supernova.html
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 galaxies and radiate more energy than...
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Supernovae Information and Facts | National Geographic
https://www.nationalgeographic.com/science/article/supernovae
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...
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What is a supernova? - EarthSky
https://earthsky.org/astronomy-essentials/definition-what-is-a-supernova/
Nov 12, 2020 · 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.
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A new supernova has appeared in the night sky | CNN
https://www.cnn.com/2023/06/09/world/pinwheel-galaxy-new-supernova-scn/index.html
Jun 9, 2023 · They serve as cosmic tools to measure astronomical distance and refine the expansion rate of the universe. NASA/ESA/Adam G. Riess (STScI, JHU) This is the first image of Sagittarius A*, the...
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DOE Explains...Supernovae | Department of Energy
https://www.energy.gov/science/doe-explainssupernovae
A supernova is the colossal explosion of a star. Scientists have identified several types of supernova. One type, called a “core-collapse” supernova, occurs in the last stage in the life of massive stars that are at least eight times larger than our Sun. As these stars burn the fuel in their cores, they produce heat.
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Astronomy & Astrophysics 101: Supernova - SciTechDaily
https://scitechdaily.com/astronomy-astrophysics-101-supernova/
Jan 10, 2023 · What Is a Supernova? Supernovae are dramatic explosions that take place during the final stages of the death of a supermassive star. Most stages of astronomical evolution happen over timescales far longer than a human lifetime, and even far longer than humanity’s entire history. Supernova explos
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NASA’s Webb Telescope Captures Rarely Seen Prelude to Supernova
https://www.nasa.gov/universe/nasas-webb-telescope-captures-rarely-seen-prelude-to-supernova/
Mar 14, 2023 · NASA’s Webb Telescope Captures Rarely Seen Prelude to Supernova. NASA Webb Telescope Team. The rare sight of a Wolf-Rayet star – among the most luminous, most massive, and most briefly detectable stars known – was one of the first observations made by NASA’s James Webb Space Telescope in June 2022.
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