A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...
Evidence suggests Earth had a ring system 466 million years ago, causing a surge in meteorite impacts and possibly ...
A newly discovered doughnut shape in Earth's outer core may reveal elements that help drive the formation of the planet's ...
Saturn’s rings are iconic, but new evidence suggests Earth might once have sported one of its own. This ring would have ...