Jack of Harts

The universe Earth found upon expanding to the stars was interesting.  It was full of more habitable worlds than anyone had expected.  But at the same time, many worlds suffered from titanic disasters of the distant past that left them in perpetual Ice Ages or with runaway Global Warming.  Since they have the right minerals for humans to live, we colonized many of them.  We have of course terraformed them to be more inviting to humanity’s march to the stars.