New measurements suggest mysterious continent-sized masses in our planet’s lower mantle may be extremely stable features of the deep Earth ...

While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, is Earth's history.

Scientists studying Saturn's icy moon, Enceladus, have discovered that its ocean forms layers that slow the upward movement ...

This article was originally published with the title “ The Plastic Layer of the Earth's Mantle ” in Scientific American Magazine Vol. 207 No. 1 (July 1962), p. 52 doi:10.1038 ...