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Solar wind · ~700–800 km/s

The Fast Solar Wind

The steady, high-speed stream of the solar wind — around seven to eight hundred kilometres per second — that flows out along open magnetic field lines from coronal holes, especially over the poles at solar minimum. It is smoother and less dense than the slow wind.

Highlights

  • ~750 km/s streams from coronal holes

Across solar physics

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.