However, the Martian dream dies the moment they find out there are other worlds with biospheres not named Earth that they can migrate to. Particularly one named

However, the Martian dream dies the moment they find out there are other worlds with biospheres not named Earth that they can migrate to. Particularly one named Laconia. The problem with Mars in the Expanse is they never got around to terraforming the surface. That and the military culture. In the books, Holden says that not a single blade of grass grows outdoors on the surface. But Earth, despite its pollution and massive population, still grows tons of things that don't grow anywhere else. It's hard to understand just how fertile our planet remains. Bobby is dazzled sitting by the polluted harbor, hearing a sea gall flying overhead. Mars only has underground zoos and farms.