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Supernova
A supernova is an explosion of a massive supergiant star. It may shine with the brightness of 10 billion suns! The total energy output may be 10^44 joules, as much as the total output of the sun ...
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The life of a star
A quick journey through the different stages in a star's life, from nebula to supernova.
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Neutron Star
For a sufficiently massive star, an iron core is formed and still the gravitational collapse has enough energy to heat it up to a high enough temperature to either fuse or fission iron. Either in the ...
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Crab Nebula
The supernova which produced the Crab Nebula was observed by the Chinese in 1054 AD. It is positioned in the constellation Taurus and is about 1 kiloparsecs away from Earth. The nebula has been a ...
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