The UVCS ultraviolet coronagraph (ring-shaped image) shows charged atoms leaving the Sun and creating two kinds of solar wind.
A fast solar wind comes from coronal holes that appear dark in the central EIT image, near the north and south poles. The charged atoms accelerate rapidly as they travel away from the Sun.
A slow solar wind comes from brighter regions near the equator, where the magnetic field impedes the escape of the charged atoms.
