Abstract
Our Sun, a G2V star, exhibits space weather in the form of magnetically driven solar explosive events, including coronal mass ejections and energetic particle events. Extreme explosive events create extreme space weather that can significantly perturb Earth's magnetosphere, causing strong geomagnetic storms and initiating atmospheric loss. The Kepler data from young solar-like stars were used to recover the frequency of extreme events in the Sun's past. I discuss recent results of the application of multidimensional multifluid hydrodynamic and magnetohydrodynamic models of interactions of extreme CME and SEP events with magnetospheres and atmospheres of the early Earth. I also discuss the implications of the impact of these effects on the atmospheric chemistry that may have initiated the production of precursors of life on the early Earth.
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