Once you get out to Ganymede, many people stop caring. Io and Europa have stolen the spotlight, leaving the last two Galilean moons as a fleeting thought, if even that. A cut-out of Ganymede. From the ...

Differences in the number and speed of cometary impacts onto Jupiter’s large moons Ganymede and Callisto some 3.8 billion years ago can explain their vastly different surfaces and interior states, ...

Could the icy moons of our solar system hold life beyond our planet? Keith Cooper looks at how planetary scientists plan to ...

Most people who have an interest in space and astronomy know that Europa and Enceladus have subsurface oceans that could, according to exobiologists, contain alien life. Another notable moon is Io, ...