Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...
New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...
Specifically, the findings support the hypothesis that supernovae could have triggered two of the so-called "big five" mass ...
A cataclysmic shift at the end of the Ordovician led to the disappearance ... that one actually occurred at the same time as the mass extinction in question — we have those geological events ...