What spacecraft sent to Jupiter was named after Galileo?

The spacecraft sent to Jupiter that was named after Galileo was the Galileo spacecraft.

NASA's Galileo was an American robotic mission consisting of an orbiter and an atmospheric entry probe. It was named for Galileo Galilei, whose 1610 telescopic observations of Jupiter revealed four large moons—Io, Europa, Ganymede, and Callisto—now known as the Galilean moons. Those discoveries made the astronomer's name especially fitting for a Jupiter mission.

The spacecraft launched on October 18, 1989, aboard the Space Shuttle Atlantis during mission STS-34. Instead of flying directly to Jupiter, it used gravity assists from Venus and Earth to build speed and conserve fuel. Galileo reached Jupiter in December 1995 and became the first spacecraft to orbit an outer planet.

Its orbiter studied Jupiter's atmosphere, magnetosphere, rings, and moons, while the entry probe descended into Jupiter's atmosphere and transmitted measurements. The mission found strong evidence for subsurface oceans on Europa, Ganymede, and Callisto, and observed volcanic activity on Io. Galileo was deliberately sent into Jupiter on September 21, 2003, to avoid an accidental impact that might contaminate potentially habitable moons.