When a star explodes in a giant supernova, it leaves quite an impression on the universe. There are plenty of supernova remnants, known as nebulae, visible by telescope, though because of their distance we're seeing them as they were hundreds of millions or even billions of years ago. Rarely do we get to see one in the act of exploding by telescope; much less with the naked eye. But that's exactly what happened when the Crab Nebula formed nearly a millennium ago.
The Crab Nebula Today
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The Supernova Of 1054
Hear the story of the supernova that rivaled our sun.
Key Facts In This Video
When the supernova that became the Crab Nebula appeared in 1054, it was 4 times brighter than Venus. 00:04
The Crab Nebula measures around 10 lightyears in diameter, which is far bigger than our solar system. 02:01
The combined mass of the Crab Nebula and its pulsar is much less than what it should be, puzzling scientists. 02:58
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Find out why these cataclysmic explosions happen.
Echoes Of A Supernova
One 17th century supernova should have been visible in the sky. Why wasn't it?
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