Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds. Known as large low-seismic-velocity provinces (LLSVPs), these blobs are both hotter and ...

Professor Tim Coulson, a leading authority on alien existence, has warned that mankind could be "wiped out" by vile slug-like ...

For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface.

Scientists with a new theory about how Earth’s early continents formed predicted where a superold impact crater should ...

From start to finish, a total lunar eclipse is a magnificent sight to behold. Here's what New Yorkers will see during the ...