SciTechDaily
By Mara Johnson-Groh, NASA’s Goddard Space Flight Center
May 27, 2026
The Sun unleashed a bizarre radio signal that kept broadcasting for 19 straight days, leaving NASA scientists stunned.
A radio burst detected from the Sun in August 2025 initially appeared to be a normal solar event to NASA scientists. These bursts, which are caused by energetic particles interacting with the Sun’s magnetic fields, usually last anywhere from a few hours to several days.