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Hypernova stage. Cutaway artwork showing one of the stages in the explosion of a massive star, known as a hypernova. A hypernova is a long-lived supernova, also known as a pair-instability supernova. This stage shows the star's outer layers collapsing inwards under gravity (arrows), as the pair-instability that has formed in the core leads to the outward radiation pressure decreasing. The resulting supernova blasts the entire star into the surrounding space, unlike ordinary supernovas that leave a neutron star or black hole. This artwork and sequence (C002/3781 to C002/3785) are based on supernova SN2006GY.
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