What is a solar flare?

A solar flare is defined as a short-lived, high-energy discharge from the Sun's surface, resulting from the sudden release of magnetic energy stored in the solar atmosphere. These events can last from minutes to hours and are associated with a variety of solar phenomena, including the acceleration of particles and emission of electromagnetic radiation across the spectrum, including X-rays and ultraviolet light.

The rapid nature of solar flares distinguishes them from longer-duration solar phenomena such as coronal mass ejections or solar prominences. Understanding solar flares is essential in the study of space weather, as they can impact satellite communications, navigation systems, and even power grids on Earth.