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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.
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.
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 6, 2024 · Don’t confuse a nova with a supernova, a final, titanic explosion that destroys some dying stars, Hounsell said. In a nova event, the dwarf star remains intact, sending the accumulated material hurtling into space in a blinding flash.
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...
9 hours ago · A time-lapse video, assembled from images collected over two decades by the Chandra X-ray Observatory, shows the Crab Nebula, a supernova explosion first observed in 1054. X-ray: NASA/CXC/SAO ...
18 hours ago · In early 2023, Hubble focused on this and a number of other galaxies to closely examine recent Type Ia supernovae. Type Ia supernovae are the result of a white dwarf exploding, and their peak brightness is very consistent. This attribute allows astronomers to use Type Ia supernovae to measure distances: we know how bright a Type Ia supernova ...
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...
Feb 23, 2024 · The neutron star in purple has been found to be at the centre of bright “string of pearls” ring of superheated gas. Scientists say they have solved the mystery of what lies at the heart of a ...
Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak. Many supernovas can be seen from billions of light-years away, and nearby supernovas in past centuries have been visible during the daytime.
