The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

With modern seismic tomography, Earth scientists have discovered that above Earth's core-mantle boundary (CMB), about 2,900 ...

Time is relative. The ticking of the clock, even of the most precise clocks we can make, does not exist in an absolute. It ...

Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.

Earth's day-night cycle is defined precisely, each a span of 24 hours before the next begins. Such is the yardstick by which we live our lives, strictly adhering to the ticking of the clock. Earth, ...

Researchers have found evidence that Earth's core is leaking gold and other precious metals, according to a new study. The vast majority (99.9%) of Earth's gold and other precious metals are hidden in ...

New research reveals that Earth’s solid inner core is actually in a superionic state, where carbon atoms flow freely through ...

Deep beneath our feet, at a staggering depth of over 5,100km, lies Earth's inner core — a solid ball of iron and nickel that plays a crucial role in shaping the conditions we experience on the surface ...

Earth cross section showing the classic distinction between crust, mantle and core. But new research shows Earth's structure is far more complicated and may change over time. Analyzing an unusual ...

Earth’s inner core has long puzzled scientists because seismic waves move through it unevenly. Compressional waves from ...

Deep under the crust and mantle of our Earth lies its core. Earth’s core was formed during the Iron Catastrophe, a major ...

Earth's core cannot be made just of iron — it also appears to contain carbon. And our research suggests it may contain a bit of oxygen and possibly silicon as well. When you purchase through links on ...