ASTRONOMY 101: EARTH'S MAGNETOSPHERE

The magnetosphere is a protective field that extends thousands of miles into space. Its magnetism affects everything from global communication to weather patterns. Created by the Earth’s spinning molten core, its existence means that the charged particles of the solar wind are unable to cross the magnetic field lines and are deflected around the Earth towards the poles. This causes beautiful auroras, sometimes appearing far south of their indigenous polar regions, like the recent displays in mid latitude zones.

This life-protecting magnetic field, has decreased by fifteen per cent over the last two centuries. Some scientists think this could be an indication that the Earth’s poles are about to exhibit a long overdue flip. The Earth would be exposed to ozone layer damaging solar winds while power supplies are wiped out, the climate is changed and cancer rates rocket.

FLIPPING MAGNETIC ATTRACTION: DMR NETWORK, 00:00hrs THURSDAY

Graphic depicting the Earth's magnetosphere and the profound effect it has on protecting the biosphere from the Sun's charged particles.

byANDY FLEMING

It's another one of our planet's amazing attributes that makes life possible here.

It's called the magnetosphere and it is generated by the Earth's spinning molten core.

It is a gigantic magnetic field extending tens of thousands of miles in to space and it diverts solar radiation and atomic particles such as protons towards the planet's poles, in the process creating stunning auroral displays. 

More importantly the magnetosphere is responsible for protecting all life on the Earth from deadly solar radiation. It also prevents our planet from ending up like Mars, a dry, dessicated world that once was oceanic and wet, but whose molten core froze leading to the loss of its magnetosphere that in turn allowed the solar wind to destroy the Red Planet's atmosphere.