solar magnetic field

The solar magnetic field is a crucial component of the heliosphere, the region encompassing the Sun and the solar system. This field, carried outward by the solar wind—a stream of protons and electrons—has a dipole structure. Due to the Sun's rotation, these field lines are drawn into a spiral. The heliosphere extends far beyond the planets, with its boundary, the heliopause, marking where the solar wind's outward pressure balances the pressure of the interstellar medium.1

The Sun's magnetic activity, including solar flares and coronal holes, significantly influences space weather. These events release energy and particles that interact with Earth's magnetic field, creating phenomena like geomagnetic storms and auroras. These interactions can affect satellites, communication systems, and even power grids on Earth.234