Dump truck around Jupiter.

Reports on the computer model of the planet Jupiter's ring created by astrophysicists Mihaly Horanyi and Thomas Cravens. Indirect distortion of the ring by Jupiter's powerful magnetic field; Prediction that a typical particle survives only 14 weeks before plunging into Jupiter; Replenishment of the ring's mass by debris from the moons Metis, Adrastea and Io.