I f astronomers had been walking the Earth 466 million years ago, they may have had something special to see. The moon and the planets and the stars and the sun would have looked

A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, according to a new study

Research suggests Earth might have once boasted a spectacular ring similar to Saturn's, formed from an asteroid breakup around 466 million years ago. This event coincides with numerous meteorite impacts primarily around the equator and a subsequent period of significant global cooling.