In the world of cosmic conspiracies there are none more bonkers, yet oddly common, than the belief that while Mars may not exactly be inhabited now it once was- and by quite the epic civilisation. From enigmatic structures to ancient Martian Morse code (maybe), each piece of evidence fuels the captivating notion that Mars once hosted a thriving alien civilization. But is any of it true? Or is it all just gubbins? Let’s investigate together like an adorable team. This is 20 pieces of evidence that Mars was inhabited by a lost civilisation!

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