A sudden, intense burst of electromagnetic radiation from the Sun's surface, caused by the rapid release of magnetic energy stored in the solar atmosphere. These events can disrupt radio communications and satellite operations on Earth.
From Latin 'solaris' (of the sun) and 'flare' from Middle English, meaning to burn with an unsteady flame. The term was adopted in the mid-20th century when astronomers began systematically observing these sudden brightening events on the Sun's surface.
Solar flares can release as much energy as billions of hydrogen bombs exploding every second for several minutes - and all this energy comes from magnetic field lines snapping and reconnecting like cosmic rubber bands! The light from a solar flare reaches Earth in just 8 minutes, but the associated particles can take days to arrive, giving us a warning system for space weather.
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