We will explore each of Earth's layers in more detail as we journey from the center of the Earth out to the layer we call home. Related: How did Earth form? At the center of Earth is a solid iron ...

The solid metal core of Earth does not rotate perfectly in time with the outer layers of the planet, and new research confirms that it has now reversed direction. Seismic waves passing through the ...

Scientists previously theorized that the E' layer was left behind by ancient iron-rich magma. Other theories posited that it leaked out of the inner core or formed during Earth's collision with a ...

Scientists have discovered a hidden layer of Earth ... one less tricky variable for computer models of the Earth. 'We can't rule out that locally melt doesn't matter,' said Becker, who designs ...

The Earth's ozone layer is expected to recover within the next 40 years as ozone-depleting chemicals are being phased out of use, a panel of international experts backed by the U.N. says.