We have long considered Mars as a potential second home. But the deeper we study our solar system, the more new candidates emerge, some of them perhaps even better for colonization. Life on Earth in its early stages was radically different from what it is today. The atmosphere was different, completely alien species dominated, and if we were to look at the landscapes that existed back then, we wouldn’t recognize Earth as it is today. So perhaps, while we are hunting for potentially habitable cel

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