How big is the largest crater on Callisto?

We find out what the biggest impact is on this Galilean moon

Top sights to see on the Moon this month

Is there ever a good time to observe our lunar companion? It depends on what you want to see…

A striking contrast between one of the fresh craters on Pluto’s largest moon and a neighbouring crater has been discovered

NASA’s spacecraft has begun returning its best-ever views of the northern extremes of Saturn’s icy, ocean-bearing moon

A close-up image of a region close to Pluto’s equator has revealed a range of youthful peaks

We take a look at what we’ve found out about the dwarf planet

With less than a day until the historic flyby of Pluto, the dwarf planet’s icy surface is becoming more fascinating and complex

This small Saturnian moon is one of the most heavily cratered bodies in the Solar System, including one massive impact…

With the Moon at its waning gibbous phase, see if you can spot some of these features on the lunar surface