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Q&A How long would recognizable ruins last in a world that's being purposely overheated?

First the situation, then the question. Here's the situation: An Earth-like planet had a civilization similar to ours, but when it emitted its first radio signals, a nearby alien observation post ...

2 answers  ·  posted 8y ago by Arbutus‭  ·  last activity 8y ago by Arbutus‭

Question earth-like climate earth architecture science-fiction