Responsible for at least two events of mass extinction in the history of the Earth could be responsible for supernova explosions caused by the “death” of large stars, according to a study published in Royal Astronomical Society’s Monthly Notices magazine. The two disappearance events occurred at the end of the deconstruction period and in the Ordovika period, ie 372 and 445 million years ago, respectively. These are two of the five well -known mass extinctions in the history of the earth. The first event disappeared about 70% of all kinds and led to huge changes in the species of fish in the seas and lakes. During the Ordovika period, respectively, 60% of marine invertebrates were killed at a time when life was largely confined to the sea. Previous research has not identified a clear reason for either of the two events, although they are believed to be linked to the exhaustion of the Earth’s ozone layer, which could be caused by a supernova. According to researchers […]
Source: News Beast
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