NASA plans new mission to Jupiter

NASA has unveiled preliminary details of a mission to Jupiter that would enable scientists to conduct their most in-depth study of the solar system's largest planet.
The $700 million "Juno" mission, part of NASA's New Frontiers Program, must be ready for launch by June 30, 2010, although it would take five years for the solar-powered probe to reach its destination.
Juno would be placed in a pole-to-pole orbit, enabling it to study the gas planet's intense magnetic field, investigate the existence of an ice-rock core and determine the amount of water and ammonia present in the atmosphere.