The strikingly bright shock waves from a massive star explosion first observed in 1987 can still be seen today, three decades later.
This brilliant star explosion, called Supernova 1987A, occurred only 160,000 light-years from Earth in a satellite galaxy of the Milky Way known as the Large...
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https://skpsoft.com/science/historic-supernova-explosion-still-shines-bright-after-30-years/
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