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Data from European Space Agency's (ESA) Cluster and Swarm missions led scientists to believe that a certain solar storm could cause a major blackout, destroying life on Earth.
Meteorites have had its fair share of triggering mass extinctions through Earth's history. Its impact generates atmospheric dust and debris covering the Earth's surface, and has long been perceived to have the power to erase life in the entire planet once more, depending on how big it is.