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Nearby Supernova. Dr. Mark Reid, a senior astronomer at the Harvard-Smithsonian Center for Astrophysics stated: "¦ were a supernova to go off within about 30 light-years of us, that would le...
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Nearby Supernova. Dr. Mark Reid, a senior astronomer at the Harvard-Smithsonian Center for Astrophysics stated: "¦ were a supernova to go off within about 30 light-years of us, that would le...