I really enjoyed Alien Planet, moreso than the NGC's more scientifically-rigorous equivalent Extraterrestial. Ironically, I think that's because AP is fundamentally the product of an artist (Wayne Barlowe) rather than a scientist, someone whose concern is "Does it look cool?" rather than "Is it likely?" I never found Darwin IV very likely, but it is very cool.

Just my two bits.

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"He fell for her like his heart was a mob informant and she was the East River."

--Anonymous