Strong X1.9 Flare Erupts from Sun | NASA’s Solar Dynamics Observatory

Strong X1.9 Flare Erupts from Sun | NASA’s Solar Dynamics Observatory

The Sun emitted a strong solar flare, peaking at 7:50 p.m. ET on June 19, 2025. NASA’s Solar Dynamics Observatory (SDO) watches the Sun constantly and captured images of the event.

This image is an extreme ultraviolet view of the Sun. It shows the bright flash of a solar flare on the Sun’s upper right side. The rest of the surface is mottled with darker and lighter regions, and faint loops of solar material can be seen extending off the Sun’s edges.

NASA’s Solar Dynamics Observatory captured this image of a solar flare—seen as the bright flash on the upper right—on June 19. The image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares and which is colorized in red.

Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts.

This flare is classified as an X1.9 flare. X-class denotes the most intense flares, while the number provides more information about its strength.

To see how such space weather may affect Earth, please visit NOAA’s Space Weather Prediction Center https://spaceweather.gov/, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts. 

NASA works as a research arm of the nation’s space weather effort. NASA observes the Sun and our space environment constantly with a fleet of spacecraft that study everything from the Sun’s activity to the solar atmosphere, and to the particles and magnetic fields in the space surrounding Earth.

Image Credit: NASA/SDO
Capture Date: June 19, 2025

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