Horizon update (4/7/06)
For those that might have missed the news (like me).
Horizon went by the orbit of Mars in 78 days and will reach Jupiter in less than a year.
It took Galileo 6 years to reach Jupiter and Cassini took 3 years.
To bad we can't get humans to Mars in less than 90 days.
Article at Spaceref or more trajectory info at NASA Horizon page.