Galileo, the NASA mission, was recently crashed into Jupiter after years of observing the planet and its moons. The mission was named after Galileo Galilei, a scientist who in the early 1600s discovered Jupiter's four largest moons. This Topic in Depth first discusses the life of Galileo the man and then describes Galileo the mission. The first site (1), developed by the University of St. Andrews in Scotland, provides an extensive account of Galileo's life, who was born in what is now Italy on February 15, 1564. Users can learn about Galileo's experiments, his scientific ideas, and his life long hardships. The second site (2) is an educational Web site by NASA describing how Galileo discovered the sun's rotation and Jupiter's four largest moons. At the end of the Web site, teachers can find a fill in the blank quiz for their elementary school children. As part of Eric Weisstein's World of Science, the next site (3) explains Galileo's observations of the phases of Venus and of the supernova, as well as his theory on relativity. In the forth site, (4) created by NASA, viewers can learn the fundamentals of the Galileo project including its physical characteristics, its mission, and its objectives. The site includes many links to images gathered from the spacecraft. In the fifth site (5) also produced by NASA, visitors can learn about the mission's end on September 21, 2003 when it plummeted into Jupiter. Users can view the animated video of the Legacy of Galileo and the most impressive images collected by the mission. As illustrated in the next Web site (6) written by Charlene Anderson, Galileo had many tribulations throughout its journey. The site includes a discussion of Galileo's important discoveries of magnetic fields around the two moons Ganymede and Callisto. The news story (7) from BBC News Online talks about the end of Galileo and provides users with a summary of Galileo's many spectacular findings and accomplishments. The site also provides an amazing image of Galileo plunging into Jupiter's atmosphere. The next site (8) connects Galileo, the man, with Galileo, the mission. Seth Shostak, at the SETI Institute, raises possible philosophical issues about the Galileo spacecraft's discovery of a large, moon-girdled ocean. Lastly, Richard Stenger at CNN mentions the possible future missions NASA will undertake to study Jupiter's moons individually (9). At this site, visitors can also learn more about why NASA decided to end the mission.