Helioseismology Reveals Unexpected Changes in the Sun's 11-Year Magnetic Cycle
By
Mark Thompson
2d ago· 4 min readenNews
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Summary
Scientists using helioseismology—tracking sound waves reverberating inside the Sun—have discovered that the Sun's regular 11-year magnetic cycle (its "heartbeat") is changing in unexpected ways. The technique, analogous to listening to vibrations from an approaching train, has revealed anomalies deep within the star that current solar models cannot explain. This discovery challenges our understanding of solar dynamics and has implications for space weather forecasting and our knowledge of stellar behavior.
Key quotes
· 4 pulledScientists have been doing something remarkably similar with the Sun, pressing their ear metaphorically speaking, to the solar surface and listening to the rumbles coming from deep within.
What they've just heard has them genuinely puzzled.
The technique is called helioseismology, and it works by tracking tiny sound waves that reverberate around inside the Sun.
That heartbeat is changing. And nobody yet knows what it means.
The Sun has a heartbeat. Every eleven years it swells with magnetic fury, hurling solar flares and charged particles into space, sparking auroral displays and threatening power grids, all before quietening down again. We've tracked this rhythm for centuri
