Geocentric Science

Particles of rock accreted together to create the early Earth. This young Earth looked extremely different from what it does today. Young Earth was a fiery planet; it was a rotating mass of hot gases and minerals, revolving around the Sun, which eventually began to cool and undergo differentiation (refer to The Formation of Earth, Earth’s Layers, and The not-so Solid Earth articles).

Before the Earth underwent differentiation, there was a magnetic fields in the young Earth. As more rock accreted into the primitive Earth, the iron grains within the rock became magnetize. The Coriolis Effect and convection within the molten core caused the iron to move. This resulted in an electric current, which created a stronger magnetic field.

The Earth developed a Magnetic North Pole and a Magnetic South Pole. The Magnetic Poles are the two positions where the Earth’s magnetic field is vertical. Presently, Earth’s Magnetic North Pole is located near the Geographic North Pole (also known as True North) and the Magnetic South Pole is located near the Geographic South Pole. Since the Magnetic North Pole and True North are not aligned, this is known as Magnetic Declination.

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Image from Wikipedia

The Earth’s magnetic field (also known as the magnetosphere) extends far out into space.