Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

These ancient buried "super-continents"—known to scientists as large low-seismic-velocity provinces (LLSVPs)—were found lurking below Africa and the Pacific Ocean, entombed some 1,200 miles below the ...

Two huge masses deep within Earth may have remained stable for billions ... That stability may also mean these objects are extremely old, with origins going back at least half a billion years ...

Two new papers describe hints to a brine-filled environment on the 4.5-billion-year-old space rock and the presence of amino ...

They challenge our understanding of what is possible in nature and prompt a reevaluation of how nuclear processes are considered in the context of Earth’s geologic history and possibly on other ...

Changes in Earth's orbit have helped pace climatic change for millennia. Scientists are now trying to understand whether - and how - these changes remodeled the landscapes our ancient ancestors ...