New research challenges what we know of our planet’s ancient past, suggesting that a ring formed around the Earth around 466 ...

3 min read During the Ordovician period, part of the Paleozoic era ... For the most part the Earth's climate was warm and wet, with sea levels rising as much as 1,970 feet (600 meters) above ...

A new study from Monash University scientists suggests that Earth may have had a ring system that formed around 466 million ...

This cooling event occurred during the late Ordovician period, around 445–443 million ... extra-terrestrial events may have shaped Earth's climate," Tomkins said. Do you have a tip on a science ...

Let’s start with a clear definition of what constitutes a mass extinction. Unlike regular extinctions, which occur at a steady background rate — about 10% of species lost every million years — mass ...