Relative to solar-system timescales, Saturn’s rings are believed to be quite young, estimated to be only 100–400 million years old. This estimate is based on the remarkable purity of the material composing the rings.

Data from the Cassini mission, showing rippling waves in Saturn's rings, has at long last been interpreted as evidence for the planet containing a fuzzy core.

Watch out for the Solar System’ giants this week! Jupiter reaches opposition, making it appear at its largest and brightest.

On December the 21st, Jupiter and Saturn will have their closest great conjunction of the past 397 years. For that we have a special treat lined up for you … read on to find out!