noun
- the region around a planet where its magnetic field dominates the behavior of charged particles
Usage: astronomy; physics
Examples
- Earth’s magnetosphere protects us from harmful solar radiation.
- The magnetosphere deflects most of the solar wind away from our planet.
- Scientists study the magnetosphere to understand space weather.
- Jupiter has the largest magnetosphere in our solar system.
- Auroras occur when particles enter the magnetosphere near the poles.
- The magnetosphere extends thousands of kilometers into space.