Sun Sets New Solar Record with 19-Day Radio Burst

A 19-day-long Type IV solar radio burst—the longest on record—was observed by four spacecraft (STEREO, Parker Solar Probe, Wind, and Solar Orbiter). Researchers traced the event to a large helmet streamer energized by three rapid coronal mass ejections, explaining why some solar radio bursts persist for days and aiding space weather forecasting. The findings were published in The Astrophysical Journal Letters.