ScienceAlert on MSN1h
NASA Is Watching a Huge, Growing Anomaly in Earth's Magnetic Field
NASA has been monitoring a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies ...
PBS14y
What Drives Earth's Magnetic Field?
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 ...