Now this is the money making system in ES 1. I was searching for this screenshot for some times. There are 6 arid planets in this system, but they were not all arid at first. After terraforming discovery we are able to change the planet's type. Arid planet bring the most of Dust, and dust is the money equivalent in Endless Space 1. Most of the planets have moons, which bring additional bonuses. It's a lovely view indeed!