A ring could explain a mysterious arrangement of impact craters near the equator and might even have caused an ice age, ...
At times during the past half-billion years, carbon dioxide warmed our planet more than previously thought, according to a ...
An effort to understand Earth’s past climates uncovered a history of wild temperature shifts and offered a warning on the ...
This new floating rock is only expected to orbit the Earth once, beginning its trip Sept. 29 before breaking off from its ...