The ring would have gradually fallen to Earth as meteorites, correlating to a spike of impacts seen in the geological record.

An effort to understand Earth’s past climates uncovered a history of wild temperature shifts and offered a warning on the ...

The bus-size asteroid, which was discovered on August 7 by the NASA-funded Asteroid Terrestrial-impact Last Alert System ...

Lavas from hotspots - -whether erupting in Hawaii, Samoa or Iceland -- likely originate from a worldwide, uniform reservoir in Earth's mantle, according to an evaluation of volcanic hotspots.

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth's ...

At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a ...

A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.

Researchers show the average surface temperature on our planet has shifted between 51.8 to 96.8 degrees Fahrenheit ...

A new study offers the most detailed glimpse yet into how Earth's surface temperature has changed over the past 485 million years. The data show that Earth has been and can be warmer than today -- but ...

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

A recently discovered asteroid will soon become a quasi-satellite of Earth as it loops around our planet over the next two months.

The ring could have cast a shadow on Earth, blocking sunlight and contributing to a significant global cooling event.