And—according to a study recently published in the journal Earth and Planetary Science Letters—during an era known as the Ordovician period, it may have once had rings. Seriously. The ...

This period (at the end of the Ordovician) is considered the coldest time of the last 500 million years. Researchers also wonder if Earth had more rings in history and whether they influenced ...

Scientists observed that all examined craters are situated within 30 degrees of the equator. This concentrated impact area, ...

Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...

During the time 485 to 443 million years ago, known as the Ordovician period, Earth was already in the throes of a serious cold snap. But the ring may have exacerbated things, plunging the planet ...

Life in the Ordovician period looked very different from today. The land was barren and devoid of life, but the sea was teeming. Squids and sea anemones, which can be seen in the illustration ...

But first there was a period of biological regrouping following the disastrous climax to the Ordovician. The recovery soon got under way in the oceans as climbing temperatures and rising sea ...

Ordovician limestone section in Sweden where a fossil meteorite was found. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by ...

This theory sheds light on the presence of an unusual density of impact craters around the equator dating back to the Ordovician period, approximately 460 million years ago. Such a ring could have ...