Exploding stars in near-solar space may have triggered at least two mass extinction events in Earth’s history. A new study ...

At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova ...

But once Gondwana took up its polar position in the late Ordovician ... the planet toward the end of the Ordovician. This resulted in the second largest mass extinction of all time, wiping ...