Carl Rustung

Moons

Pestered my partner M with a pair of binoculars recently, pointing at the night sky going: “holy MOLY that’s JUPITER and you can see four of its MOONS and they’re all in a ROW! Don’t go to bed yet, you gotta SEE this!” Thanks to this handy moon guide, I now know we saw Ganymede, Callisto, Io and Europa, and can also bother M with: “WHOA did you know there are TWO HUNDRED AND THREE MOONS in our solar system!?”