Number 69 (Story #2), February 27, 1992 by Phillip F. Schewe and Ben Stein ULYSSES HAS VAULTED PAST JUPITER and is now aiming to pass under the solar south pole in 1994. The first spacecraft to visit Jupiter in 12 years, Ulysses sampled the Jovian magnetic field, the strongest in the solar system. The magnetosphere was flatter than expected. Mission scientist Andre Balogh partly attributes this to the presence of a huge billion-ampere current flowing in the Io Torus, a sheet of sulphur an oxygen ions issuing from Jupiter's volcanic moon Io. (New Scientist, 22 Feb. 1992.)