In the Earth (see image below right), the liquid metal that makes up the outer core passes through a magnetic field, which causes an electric current to flow within the liquid metal. The electric ...

The Earth's magnetic field shields life from harmful solar and cosmic radiation. A weakening field could increase genetic mutations, potentially raising cancer rates. Additionally, a reversal ...

This image of Earth, one of 77 composite photographs appearing ... The large green patches spanning Earth's continents stand testament to the abundant life they host. Earth's magnetic field and ozone ...