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| Earth´s magnetic field. Sources: physics.sjsu.edu. |
The Earths magnetic field, the protector of all life on Earth is under
constant attack from deadly cosmic radiation. This invisible shield that
we live in is weakening in a region over the South Atlantic, leaving it
exposed to potentially lethal radiation. Is the Earth losing its
magnetic field and doomed to a fate similar to Mars? Many scientists
believe the answer lies in paleomagnetic data, and that this weakening
may be a precursor to a magnetic field reversal; scientists know Earth
is long overdue. However, humans were not around when the last reversal
took place, so what does this mean for life? [Sarah Livesey via YouTube]
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