outer core outer core outer core outer core outer core English Outer core English nucleo esterno English outer core English English English outer core outer outer core outer core Outer Core English English outer core outer core English outer core outer core outer core outer core English Outer core outer core Outer core outer core http://en.wikipedia.org/wiki/Outer_core Outer core English http://en.wikipedia.org/wiki/Outer_core English Outer core outer core outer core English English outer core outer core English outer core outer core Wikipedia_Earth's Outer core English outer core outer core outer core outer core outer core outer core outer core outer English Outer core outer core view article outer core outer core outer core English outer core view article outer core Outer core outer core English English English outer core