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

Over 25 years ago, researchers discovered that some of these deep Earth reverberations pointed to the existence of two ...

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

Two hidden mountains, more than 100 times larger than Mount Everest have been discovered deep underground. The two ‘islands ...

Deep within Earth’s mantle lie two enormous regions, often referred to as "islands," which are the size of continents.

Deeply hidden in Earth's mantle there are two huge "islands" the size of a continent. New research from Utrecht University ...

These ancient buried "super-continents"—known to scientists as large low-seismic-velocity provinces (LLSVPs)—were found ...

For years, scientists have pondered the mysterious structures deep within the Earth. Research indicates that they are ...

At around 620 miles high, these subsurface “islands of rock” stand more than 100 times higher than Mount Everest’s summit of around 5.5 miles, ...

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

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NASA InSight’s seismic data uncovers the Martian dichotomy origins Findings suggest ancient tectonic activity shaped Mars’ hemispheres Seismic analysis points to internal planetary processes as a caus ...