The mantle is a hot, dense, rocky layer between the Earth’s crust and its core. In a lab experiment, the researchers showed that molten iron can deeply penetrate single crystals of magnesium iron ...

Earth's inner core is a solid ball of mostly iron and nickel.Measuring about 1,520 miles (2,440 kilometers), this inner core spins inside the outer core, an ocean of molten iron and nickel about ...

It features an enormous space rock that collided with our planet about 4.5 billion years ago, exploding into a maelstrom of molten iron—which may account for iron oxide and other heavy metal ...

Today, Earth’s core is actually two pieces. There’s an outer layer of molten metal about 1,795 miles thick. Inside that layer of molten metal lies a solid sphere of iron and nickel: the inner ...

Inside the belly of planet Earth, a giant solid ball of metal is surrounded by a swooshing layer of liquid iron and nickel, making up the two innermost stages of Earth’s geological layers.

Beneath the mantle is a liquid iron outer core and solid iron inner core. Because Earth and Mars are both rocky planets, ... made primarily of molten iron that might contain traces of other elements.

An international team re-created molten rock conditions deep within the Earth and measured the spin states of iron atoms within that rock melt. An iron atom's spin state drives its ...

New experiments have shown that the core of Mars formed much faster than Earth's core, thanks to molten iron and nickel sulfides seeping down through solid rock and into the center of the Red Planet.

Because the Earth’s core is so deep, and hidden within a molten layer of rock, it’s pretty much impossible to dig down and simply discovery it for ourselves.

Mars may be smaller than Earth, but new research suggests it outpaced our planet when it came to forming its core. Scientists from NASA’s Johnson Space Center have uncovered evidence that Mars’ ...