Resumen de Early humans felt supernovae blasts
Roughly 2 million years ago, two supernovae exploded so close to Earth that they showered the planet with debris, leaving behind traces of radioactive iron-60 now buried in the seafloor. Now, Brian Thomas at Washburn University in Topeka KS, and his colleagues posit that the two supernovae could have hurled enough radiation at Earth to affect human ancestors' behavioral patterns, and potentially increase cancer rates.
