Number 38 (Story #5), June 21, 1991 by Phillip F. Schewe and Ben Stein THE ULYSSES SPACECRAFT , launched in October 1990 and halfway toward Jupiter, is now making measurements of solar radiation and particles. One of Ulysses's first tasks will be to map the complicated magnetosphere of Jupiter, which it will encounter in February 1992. Jupiter's gravity will hoist Ulysses into an unprecedented elliptical orbit that carries it out of the plane of the ecliptic and over the solar south pole in 1994 and the north pole in 1995. Ulysses will also study the interstellar medium, cosmic rays, and galactic x-ray and gamma-ray sources. (Eos, 28 May 1991.)