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supernova

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"One of the most energetic explosive events known is a supernova. These occur at the end of a star's lifetime, when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy. If the star is particularly massive, then its core will collapse and in so doing will release a huge amount of energy. This will cause a blast wave that ejects the star's envelope into interstellar space. The result of the collapse may be, in some cases, a rapidly rotating neutron star that can be observed many years later as a radio pulsar." What this means is that when a star explodes it releases so much radiation and all this releases more energy that the sun would in its life span. This process could last up to a few weeks to a few months.


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  1. ^ Tyler, Pat. [heasarc.nasa.gov/docs/snr.html "Supernova"]. astronomer. Pat Tyler. Retrieved October 19, 2011. {{cite web}}: Check |url= value (help)