Colin Stuart 🔭 @colinstuartspace.bsky.social · 02/02/2026Saturn’s moon Iapetus is one of the most distinctive in the solar system. Firstly, it has a two-toned surface - the dark stuff could be debris from other moons. (1/2) Image: Cassini #astronomy 2102
Colin Stuart 🔭 @colinstuartspace.bsky.social · 02/02/2026(2/2) Iapetus also has a “belly bulge” - a giant equatorial ridge that can tower to 20km. That’s more than double the height of Mount Everest. Image: Cassini 000