1x07 Crab Nebula (The)
First Aired: Apr. 14, 1974 on PBS
Summary: In 1054 AD, the Chinese recorded the explosion of a star so bright that it lit the sky for three weeks, even during the day. It was the explosion of a dying star that was bigger than our sun. NOVA explores this mysterious explosion that led to the discovery of Crab Nebula.
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