The air core of the solenoid’s coil is partially occupied by an iron or mild steel plunger, held in place by a return spring.

In fact, according to Guoyin Shen of the Carnegie Institution of Washington, most Earth scientists are persuaded that the iron in the inner core does in fact have a hexagonal-shaped lattice. “Within ...

Scientists put iron, the main ingredient of Earth's core, through rigorous lab tests to recreate conditions inside the planet, and narrowed down what else the core might be made of and how it ...

The iron in Earth's inner core weakens dramatically before it melts, explaining the unusual properties that exist in the moon-sized solid center of our planet that have, up until now, been ...

FOR several years past iron-cored coils for oscillatory circuits have been used by telephone engineers at audio frequencies and at the low radio frequencies which are used in carrier current ...

Earth's inner core may have paused and reversed its spin, a new study suggests.; Earthquakes and nuclear blasts can send seismic waves through the mysterious solid-iron core. Those waves hint that ...

While the idea of an inner core was first discovered in 1936 using seismic wave information, we’ve now measured the core about 4,300 miles across. It’s made up of mostly iron and some nickel ...

Inside the belly of planet Earth, a giant solid ball of metal is surrounded by a swooshing layer of liquid iron and nickel, ...

A recent groundbreaking study has revealed something truly surprising: Earth’s core may be leaking iron into the mantle. This ...

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

The low core density that was proposed based on the lander’s observations meant that there had to be a significant amount of light elements like silicon, carbon, oxygen, and hydrogen in the core.

The Moon’s Inner Core Is Solid Iron After All, Study Finds. Just like Earth's. By Darren Orf Published: Jun 01, 2023 12:00 PM EDT. NurPhoto // Getty Images.