Galileo lacked the rocket power to head directly for Jupiter. Instead, the spacecraft swung past Venus and twice past Earth to gain energy in slingshot fashion. Here's the odyssey:
Oct. 18, 1989: Launch via Space Shuttle Atlantis.
Feb. 10, 1990: Fly by Venus.
Dec. 8, 1990: Fly by Earth.
Oct. 29, 1991: Inspect asteroid Gaspra.
Dec. 8, 1992: Fly by Earth. On to Jupiter.
Aug. 28, 1993: Inspect asteroid Gaspra again.
July 1994: Watch comet Shoemaker-Levy hit Jupiter.
Dec. 7, 1995: Enter Jupiter orbit. Atmosphere probe plunges into planet.
December 1997: Main mission ends.
January 2000: Extended mission ends.
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