In Australia, a team of researchers has identified the oldest meteorite impact crater ever discovered. This site, located in the Pilbara region, dates back 3.5 billion years, pushing the ...

Two of Earth’s five confirmed mass extinction events could have been caused by nearby supernova explosions stripping the ...

Satellite images taken more than three decades apart show the disappearance of Iceland's Okjökull, the first glacier to be officially declared dead as a result of human-caused climate change.