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Why Magnetic Shield around the Earth is important?

A magnetic field that protects us from the sun’s radiation and makes liquid water - and life! - possible on Earth. That is the main difference between Mars and Earth. Why is there such a difference? Watch the video to learn.

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Channels: Interesting Science

Tags: magnetic field mars earth

Uploaded by: ( Send Message ) on 27-07-2015.

Duration: 4m 12s