Ulysses: Century of the Sun

The spacecraft Ulysses has set out on its long voyage to study the sun. Miriam Rorman of NASA headquarters explains how important it is to look at the sun from all angles, not just from the plane of the ecliptic as visible from earth. "Climate is driven by the sun," she says, and adds that an important aspect of the Ulysses project is to examine the sun during the upcoming solar activity maximum.

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