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A time lapse video where you can actually see the Crab Nebula expanding

The Crab Nebula is the result of a supernova that happened 6,500 light years away from Earth. From our perspective, the supernova happened almost 1000 years ago, in July, 1054. Using a home-built telescope, amateur astronomer Detlef Hartmann took a photos of the Crab Nebula over a ten-year period and assembled them into a time lapse video of the nebula’s expansion. Even after a millennia and across all that distance, the expansion of the nebula is clearly visible.
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