The Galileo spacecraft launches on a six-year
journey to Jupiter. The mission is the first of a new generation
that will orbit outer planets -- rather than fly by -- so they can
be studied in greater detail.
Galileo's flight path takes it by other planets first so that it
will gain energy from the gravity of each. Galileo will fly past
Venus on February 10, 1990, and then twice past Earth -- once on
December 8, 1990, and again on December 8, 1992.