Ulysses is a sun-observing spacecraft that is a joint effort between the European Space Agence (ESA) and NASA. It launched in 1990 and it is still orbiting the Sun. It’s orbit over the solar poles gives unique insight into the forces behind space weather. Magnetic storms can disable wireless telephone calls, satellite communications and electric power grids. Predicting when such solar activity will strike is a fundamental goal of space weather research. The first pass of the south pole of the sun occured in 1994, the first pass of the north pole in 1995.