geomagnetism
🇺🇸
/ˌdʒiːəʊˈmæɡnətɪzəm/
🇬🇧
/ˌdʒiːəʊˈmæɡnətɪzəm/
The branch of science that deals with the Earth's magnetic field and its effects.
Research in geomagnetism helps us understand how the Earth's magnetic field protects us from solar winds.