A team of NASA-funded scientists recently detected aurora-like radio bursts roughly 25,000 miles (40,000 km) above a sunspot. This region is relatively cool, dark, and magnetically active.
Typically, the Sun emits short radio bursts that last for minutes or hours, but the ones detected in 2023 persisted for over a week. These radio bursts also have other characteristics that are far more similar to radio emissions produced in the polar regions of Earth as well as other planets with auroras. The findings could help researchers better understand the Sun as well as the behavior of distant stars that produce similar radio emissions.
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This sunspot radio emission represents the first detection of its kind. The discovery excites us as it challenges existing notions of solar radio phenomena and opens new avenues for exploring magnetic activities both in our Sun and in distant stellar systems,” said Sijie Yu of the New Jersey Institute of Technology, Newark.
