The Magnetic Field is created somehow in the core by unknown origins (speculation suggests that it’s created from the spinning liquid outer core)
It blocks most of the solar wind and some solar wind goes through the poles and creates aurora borealis.
Tom Scott: ... and at number 3, it’s the Earth’s Magnetic Field
by PewDieSeries January 20, 2021
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A magnetic field is the magnetic effect of electric currents and magnetic materials
Magnetic fields can be produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin.
by coolwaves159 March 17, 2017
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Magnetic fields usually occur in presence of magnets, or anything magnetic, it can attract a lot of things. It also creates a force on electric charges.

Magnetic Field is also a map created by the best mapmaker, cto himself
Sus Boi: Does Magnetic Field exist?
Sus Gang: YES!
by captaincto November 28, 2021
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