Timelapse Shows the Glowing Wreckage from Supernova 1987a Expanding Outward Over 30 Years
Supernovae are the granddaddies of all cosmic light shows, and Supernova 1987a is one of the most studied objects in the history of astronomy. As its name makes clear, it was first observed in 1987, and it’s the closest supernova observed since the telescope was invented. The ‘a’ was added to its name because it …
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