Solar corona

The solar corona is the Sun's outer atmosphere, a glowing, plasma-rich layer that extends millions of kilometers into space. It is much hotter than the Sun's surface, reaching millions of degrees Celsius, which causes the plasma to emit light that we see during a solar eclipse as a bright, wispy halo. The corona is made up of ionized particles influenced by magnetic fields, and it plays a key role in space weather, including solar wind and solar flares. Despite its visibility only during eclipses or with special instruments, the corona is a vital part of understanding solar activity and its impact on Earth.