Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.
Green Matters on MSN
Two massive 'blobs' hidden deep inside Earth may be secretly controlling its magnetic field
The blobs lie at the base of Earth’s mantle, around 1,802 miles beneath Africa and the Pacific.
Most of the time, the shape of Earth’s magnetic field is quite similar to that which would be produced by a bar magnet ...
From galaxies to the Sun, new research explains how turbulent motion can produce large-scale magnetic fields that remain ...
Scientists are mapping the Milky Way galaxy’s invisible magnetic field, revealing how it holds the galaxy together and ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results