Solar flares are powerful bursts of radiation and energy released from the sun's atmosphere, often accompanied by coronal mass ejections (CMEs).
They can impact the Earth's magnetic field, causing geomagnetic storms that can affect satellite operations, GPS systems, and power grids.
Classification of solar flares is based on their X-ray brightness in the wavelength range of 0.1 to 0.8 nanometers, using a logarithmic scale.
Flares range from weak B-class to significant X-class flares, with the most intense flare recorded, an X28, in 2003.
The recent X1.4 solar flare on May 29, 2024, was the largest flare of Solar Cycle 25, which began in 2020 and is expected to last until 2031.
CMEs from solar flares can reach Earth in as little as 15-18 hours, causing temporary disruptions in radio communications, navigation signals, and satellite operations.
NASA and other space agencies continuously monitor the sun's solar activity to provide warnings and alerts for potential impacts on Earth.
Prolonged exposure to intense solar radiation from solar flares can damage satellites in orbit and electrical grids on the ground.
During a geomagnetic storm, charged particles can interact with the Earth's magnetic field, generating currents that flow through the atmosphere and can impact power grids.
Although solar flares and CMEs can cause disruptions, they also offer opportunities for scientists to learn about the sun's behavior and space weather.
Space weather forecasting has become increasingly important due to the growing dependence on satellite technology and power grids in modern society.
Predicting the timing, strength, and direction of solar flares and CMEs remains a significant challenge for scientists and space weather forecasters.