Astronomers have observed the aftermath of Supernova 1987A over a 25-year period, from 1992 to 2017.
from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2018/10/181031124853.htm
from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2018/10/181031124853.htm
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