Watch S1, EP7: Magnetic Shield with Fubo for $0 Today
Earth's metallic core makes the planet a huge magnet, generating a magnetic field that protects us from dangerous cosmic rays and solar energy.
Earth's metallic core makes the planet a huge magnet, generating a magnetic field that protects us from dangerous cosmic rays and solar energy.
More episodes
Secrets of the Earth
S1, EP8 "Blizzards"Blizzards: it's one of the Earth's most beautiful secrets until it turns into a storm that can bring entire cities to a grinding halt.
Secrets of the Earth
S1, EP7 "Magnetic Shield"Earth's metallic core makes the planet a huge magnet, generating a magnetic field that protects us from dangerous cosmic rays and solar energy.
Secrets of the Earth
S1, EP6 "Goldilocks"Venus and Mars show how inhospitable Earth could have been if things were just a little bit different.
Secrets of the Earth
S1, EP5 "Gravity"NASA satellites have mapped Earth's gravity and discovered mysterious spots where gravity is weaker; how earthquakes change the planet's gravitational field.
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