While Galileo was often called a mission to Jupiter, the spacecraft also made extensive observations of the planet's largest moons. It found evidence of a liquid ocean underneath Europa's surface, sparking questions about what sort of life could lie underneath. read more
Galileo's small telescope - posted in General Observing and Astronomy: Seeing pictures of Galileos very skinny telescope, I think maybe 28mm or 32mm, with only 4 power, I wonder how he saw all the things that he saw. read more