Scientists get a new clue to the origin of solar wind 'switchbacks'

The European Space Agency's Solar Orbiter has enabled scientists to trace magnetic switchbacks in the solar wind's magnetic field back to their source at the Sun. "Switchback" is the name given to an S-shaped kink in the solar wind's magnetic field – a sudden and large deflection. In 2022, the spacecraft gave scientists a full view of the structure (confirming the S-shape), but the origin remained up for debate. At the time, the probe's data suggested it might be near the Sun's surface, bu