Solar Wind Speed from South Pole to North Pole: The upper panel contains an X-ray image of the Sun obtained by the Soft X-ray Telescope on the Japanese Yohkoh spacecraft; the lower panel shows the solar wind speed and density observed by the Ulysses spacecraft from the South Pole to the North Pole. The latitudinal region indicated by the yellow bar in the lower panel is the region previously explored by in-ecliptic spacecraft.

Credits - NASA