Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...

Two of Earth’s five confirmed mass extinction events could have been caused by nearby supernova explosions stripping the planet’s ozone layer, a new study argues. Although the explanation has been ...

As astronomer Carl Sagan once said, we are "made of star stuff," as this research suggests, we may also be at the mercy of it ...

These first steps toward life on land were cut short by the freezing conditions that gripped the planet toward the end of the Ordovician. This resulted in the second largest mass extinction of all ...

Two of Earth's largest mass extinction events were likely triggered ... those at the end of the Ordovician Period, some 445 million years ago, and the end of the Devonian, about 372 million ...

They believe a supernova explosion close to Earth could be to blame for both the late Devonian and Ordovician extinction events, which occurred 372 and 445 million years ago respectively.

International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 ...

Abrupt climate change at the end of the Ordovician Period (~450-440 million years ago) caused the second largest mass extinction in Earth history, including the demise of the trilobite ...

They believe a supernova explosion close to Earth could be to blame for both the late Devonian and Ordovician extinction events, which occurred 372 and 445 million years ago respectively.