magnetosfääriä
Magnetosfääriä is the region of space surrounding a planet that is dominated by its magnetic field. This region is a dynamic and complex environment where the planet's magnetic field interacts with charged particles from the solar wind and cosmic rays. For Earth, the magnetosfääriä extends about 10 Earth radii on the sunward side and can stretch out for hundreds of Earth radii on the night side, forming a long tail.
The shape and behavior of the magnetosfääriä are primarily determined by the strength and orientation of the
Within the magnetosfääriä, charged particles can become trapped in belts known as Van Allen radiation belts.