What protects the Earth from the Sun’s space weather?

The Earth's magnetosphere

The Earth's magnetosphere.

NASA/Goddard/Aaron Kaase

Earth sits within a bubble formed by Earth’s strong magnetic field. This magnetic field is constantly exposed to the wind from the Sun and therefore shaped like a teardrop with a tail pointing away from Earth and Sun. This protective bubble is called the magnetosphere, and is responsible for deflecting most of the high energy particles from Earth.

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