Region around Earth dominated by the geomagnetic field, carved by the solar wind into a tear-drop cavity (~10 R_E sunward dayside, megametre-scale magnetotail). Hosts trapped radiation, the ring current, and the auroral oval.
Region around Earth dominated by the geomagnetic field, carved by the solar wind into a tear-drop cavity (~10 R_E sunward dayside, megametre-scale magnetotail). Hosts trapped radiation, the ring current, and the auroral oval.