Scala / Art Resource, NY Galileo was the first to discover the moons of Jupiter. Michael Benson ... Matt Rourke / AP Images Galileo improved upon the original telescope design.

Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated observations over several nights and realized ...

JunoCam’s sequence of images of the NASA Juno mission's encounter with Jupiter's moon, io, on 3 February 2024. Comparison of Galileo and JunoCam data showing emergence of new volcano on Jupiter ...

In the 1990s, however, NASA's Galileo spacecraft captured magnetic measurements near Callisto that suggested that its ice shell surface—much like that of Europa, another moon of Jupiter—may ...

Discovered by Galileo in 1610, Europa is one of the four so-called Galilean moons of Jupiter, along with Ganymede, Io and Callisto. What type of life might Europa harbor? Besides water ...