For its tenth birthday, NASA’s Juno spacecraft was given an unprecedented view of the Solar System’s largest Moon: Jupiter’s Ganymede.

Io and Ganymede, two of Jupiter's many moons, have been observed and listened to by the Juno spacecraft, with some fascinating insights at stake.

Our understanding of our closest companions in space is far from complete: there are 8 planets, over 200 moons and many more small objects like dwarf planets, asteroids and comets to look at.