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Feb 24, 2016 03:40 AM ET
Beneath Earth's crust is the mantle, a super-thick layer of slow-moving rock so deep below the surface that no one has been able to reach it. Here's why it's worth the effort to keep trying.
Jul 28, 2015 04:07 PM ET // Sarah Lewin,
The remains of burnt out Iron Age huts in Africa hold clues into understanding a bizarre weak spot in the Earth's magnetic field and weird magnetic pole reversals. Continue reading →
Jun 21, 2015 03:13 PM ET // LiveScience
The mass of the Earth's solid inner core has been a thorn in our understanding of how the interior of our planet works.
Aug 26, 2014 07:00 AM ET // Eric Niiler
Both can cause widespread human and ecological devastation. But picking a winner in a destruction derby is a tough call.
Jul 1, 2014 09:00 AM ET // Becky Oskin, LiveScience
There were twice as many of the biggest earthquakes in the first quarter of 2014.
Jun 18, 2014 04:00 AM ET
Guess what Earth's been hiding from us, way down in its belly? Water! Lots and lots of water.
Jan 28, 2013 04:55 PM ET // Ian O'Neill
A previously unknown magnetic field appears to be polarizing radio emissions from two vast lobes projecting from the Milky Way's core. ->
Mar 10, 2011 06:42 PM ET // Christina Reed
NASA geophysicists find natural cycles to Earth's warming that correlate to movement of liquid iron in Earth's outer core -- up until 1930.