Space.com on MSN4d
Massive star explosions may have triggered two mass extinctions in Earth's past: 'It would be terrifying.'
Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...
Supernovas may have played a role in two of Earth’s largest mass extinctions, study suggests
New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...
WBAL-TV3d
Supernovas may have had a role in two of Earth’s largest mass extinctions, study suggests
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 ...