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“Over millions of years, material from this ring gradually fell to Earth, creating the spike in meteorite impacts observed in ...
A ring of asteroid debris could have orbited Earth for tens of millions of years, and perhaps even have altered the planet's climate ...
The Pacific Ocean, the largest and deepest of Earth's oceans ... In terms of average income per person, North America leads all continents, and its residents have the highest average food consumption.
At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a ...
Contemporary fiction is fascinated by Deep Time, a time before humanity and therefore before history, as it seeks to imagine ...
Research suggests Earth might have once boasted a spectacular ring similar to Saturn's, formed from an asteroid breakup ...