 Hello, you're back with me, Noah, for this week's Unexpected Elements quiz. All this talk of psychedelics has started to make me space out. And that got me thinking, what's in space? Well, the moon, for starters. But did you know that our solar system is littered with them? And they don't all look like ours. Moons can be defined as any object that orbits a planet or other celestial body that isn't a star.