Galileo
The Galileo mission was first conceived in October of 1977 as the "Jupiter Orbiter Probe mission." Galileo was launched on October 18, 1989, from the payload bay of the space shuttle Atlantis (STS-34).
Galileo's trajectory used "gravity assist" to save fuel. The course to Jupiter took it past Venus on February 10, 1990. It made a return pass near Earth on December 8, 1990. On October 29, 1991, the probe made a close fly-by of Asteroid Gaspra. It passed Earth again on December 8, 1992, then passed close to Asteroid Ida on August 28, 1993.
Galileo photographed comet Shoemaker-Levy's crash into Jupiter during July of 1994.
On July 15, 1995, Galileo's descent probe was released to make it's own journey to Jupiter.
Galileo arrived at Jupiter on December 7, 1995. Later the same day, the descent probe entered Jupiter's atmosphere. The probe relayed data to the Galileo orbiter for about an hour before being crushed by the pressure of the atmosphere.
Galileo made 35 orbits of Jupiter returning more than 30 Gigabytes of data including about 14,000 pictures.
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