A Hole on the Sun

coronalholeThe Solar Dynamics Observatory took these images of a large coronal hole on the Sun last week. Coronal holes are the source of a high-speed wind of solar particles that streams off the Sun some three times faster than the normal solar wind. It’s not clear what causes coronal holes, but they correlate to areas on the Sun where magnetic fields flow away from the surface without looping back as they do elsewhere.

Image Credit: NASA

2 thoughts on “A Hole on the Sun

  1. Perhaps a certain member of Team Kimberlin has interposed himself between the the SDO and that part of the sun?

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