The solar wind is a continuous stream of magnetized plasma—an ionized gas composed primarily of electrons, protons, and helium nuclei—that emanates from the Sun. Driven by the star's intense magnetic fields and thermal pressure, this outflow of charged particles travels throughout the inner solar system. As the wind encounters the magnetospheres of planets, such as Earth, its interaction with the planet's magnetic field can induce phenomena like the auroras. The solar wind is a critical component of space weather, influencing the terrestrial environment and posing radiation hazards to spacecraft and equipment that operate outside the protective magnetosphere.