The Sun emitted strong solar flare, peaking at 7:28 a.m. ET on June 3. NASA’s Solar Dynamics Observatory, which watches the Sun constantly, captured an image of the event. NASA’s Solar Dynamics Observatory captured this image of a solar flare — seen as the bright flash toward the upper right — on June 3, 2026. 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.