A human civilization in my story has terraformed hundreds, possibly thousands of planets across their galaxy to support life. They have done this by changing the atmospheres, adding minerals into the soil where needed, etc. Several other science fiction stories describe planets with basically one type of environment. For example, Tatooine in Star Wars is pretty much entirely desert.
If many of my story’s planets have been terraformed, would it make sense for the humans to make them with a singular environment (like a planet that’s all desert, all forest, etc.) or would planets with more diverse environments (such as deserts, forests, etc. on one planet) make more sense from a perspective of artificial terraforming? In other words, which result would be more likely from artificial terraforming?
- The human terraformers are modifying existing planets within the habitable zones of their stars to make them habitable.
- The planets suns are similar to our own, though in at least one case, which I think is somewhat unique in my universe, one planet’s sun appears blue from the planet’s surface. This isn’t because the sun is blue star, but because of atmospheric filtration.
- The human terraformers have super advanced levels of technology. They can create traversable wormholes to travel across the galaxy. They’ve once in their past fled a galaxy to get away from a powerful enemy civilization. I hope this gives you an idea of the scope of their technology. They likely have the level of technology to achieve either a single-environment planet or a multi-environment one.
- They pass down in their traditions a story about their original homeworld, which was similar to Earth with bio-diversity and climate diversity. This homeworld is considered a paradise, similar to our story of the Garden of Eden.