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Oct 11, 2024 · Imagine something one million times the mass of Earth collapsing in 15 seconds! The collapse happens so quickly that it creates enormous shock waves that cause the outer part of the star to explode! Usually a very dense core is left behind, along with an expanding cloud of hot gas called a nebula.
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 19, 2023 · Stars much more massive than the sun (around 20 to 30 solar masses) might not explode as a supernova, astronomers think. Instead, they collapse to form black holes.
Iron atoms become crushed so closely together that the repulsive forces of their nuclei create a recoil of the squeezed core—a bounce that causes the star to explode as a supernova and give...
Mar 24, 2020 · When this collapse happens it does so very quickly, which results in the generation of massive shock waves that cause the outer part of the star to explode. This is what we observe as a bright supernova explosion.
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.
When large stars begin their death throes they explode in a colossal supernova, one of the most sudden and violent events in the sky.
