PerspectiveSolar Physics

Order Amidst Turbulence

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Science  05 Apr 2002:
Vol. 296, Issue 5565, pp. 64-65
DOI: 10.1126/science.1070979

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Variations in the solar magnetic fields can yield eruptions that short-circuit satellites and darken power grids. In his Perspective, Toomre explains how helioseismology, which, similar to terrestrial seismology, uses acoustic waves traveling through the Sun to measure its interior properties, helps to elucidate the origin of the magnetic fields. He highlights the report by Vorontsov et al., who provide evidence for variations that are coherent over the full depth of the Sun's convection zone.