Galileo probe

The Galileo probe was an automated spacecraft launched from NASA's Space Shuttle Atlantis towards Jupiter and its moons in 1989. It arrived in the Jupiter system just over six years later (in Dec. 1995), having benefited from gravitational assist flybys of Venus and Earth. It was the first spacecraft to orbit Jupiter. In 2003, the spacecraft was deliberately sent into Jupiter's atmosphere at high speed to destroy it, avoiding a chance of contamination of any of Jupiter's moons with bacteria from Earth.