The Earth: a ringed planet, much like Saturn, surrounded by a hula hoop of asteroids. The summit of Mount Everest: a tropical ...
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 ...
A new study from Monash University scientists suggests that Earth may have had a ring system that formed around 466 million ...
Detail images of fossils from the Ordovician Period outcrop on Anticosti Island, Quebec, Canada. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...
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 ...
Using the NASA/ESA James Webb Space Telescope, astronomers confirmed that supermassive black holes can starve their host ...
Researchers have proposed that Earth may have had a ring system 466 million years ago, during a period of intense meteorite ...
The hypothetical ring didn't last long, cosmically speaking – just a few tens of millions of years. But that was long enough ...