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Crab Nebula of 1054
A supernova is the explosion of a very large [[star]] such that the star becomes extremely bright, perhaps even one billion times brighter than our [[sun]]. [http://www.nasa.gov/worldbook/supernova_worldbook.html]
A supernova is the explosion of a very large [[star]] such that the star becomes extremely bright, perhaps even one billion times brighter than our [[sun]].
In 1054, Chinese astronomers recorded a supernova so bright that it was visible during the day. The explosion left behind a pulsar and a huge cloud of gas and dust known as the [[Crab Nebula]], which still can be seen today. [http://www.nasa.gov/worldbook/supernova_worldbook.html]
==External links==
==External links==