July 4, 1054: Crab Nebula Makes a Spectacular Debut in the Heavens

Chinese astronomers mark the beginning of Supernova 1054, heralding the birth of what will become known as the Crab Nebula.

Source: http://www.wired.com/thisdayintech/2012/07/july-4-1054-crab-nebula-makes-a-spectacular-debut-in-the-heavens/

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