As the iron and nickel inside our planet shift, so does Earth's magnetic field, meaning the North (and South) Poles are also ...

Deep below Earth's surface lie two gigantic structures with mysterious origins. Now, seismologists have found new clues about their composition that could upend our understanding of the whole planet's ...

A team of scientists has detected a colossal geological anomaly, a massive and mysterious change that took place nearly 2,900 ...

Two recent studies used seismic data from NASA's retired InSight mission to shed light on what lies beneath Mars’ surface and what that means for the planet’s history ...

A new study published in National Science Review reveals that the asthenosphere plays an active role, rather than being passively involved as previously expected, in modulating seafloor spreading at ...

The Earth’s oceans have risen and fallen over the millennia. But they have, on average, been relatively stable over billions of years. The balance of the deep water cycle—the exchange of water between ...

A recent study reveals dynamic transformations in Earth's lower mantle, impacting both earthquakes and the magnetic field. GRACE satellites detected a gravitational anomaly in 2007, linked to a ...

Lavas from hotspots—whether erupting in Hawaii, Samoa or Iceland—likely originate from a worldwide, uniform reservoir in Earth’s mantle, according to an evaluation of volcanic hotspots published today ...

A team of Japanese researchers hopes to drill through the Earth's crust and reach the mantle directly. This would be a major achievement; our efforts to reach the mantle to-date have not been ...