Space.com Extinction-Level Superflares May Blast Earth’s Nearest Exoplanet Proxima b 12 December 2016 fborgosano Leave a comment Share: The recent discovery of a planet around the star closest to the sun has raised hopes that life might exist there, but researchers now find that this world might frequently experience extinction-level “superflares” from its star. from Space.com bit.ly/2hvo3Ic Share: