Massive 400-mile-wide ball of iron makes up Earth’s innermost layer, study suggests

LINCOLN, Neb. (KLKN) — A new study suggests there is a 400-mile-wide ball of iron at the center of the earth.

That’s according to Australian geoscientists who believe our planet has five major layers instead of four.

Researchers used seismic data from earthquakes and volcanoes to help support their findings.

They say the discovery could eventually explain some of Earth’s oldest mysteries, such as the behavior of our planet’s magnetic field.