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http://astrowright.wordpress.com/?p=3679: Cycloidal Ridges on Europa: A Xenoarchaeological Analogue
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Direct link Cycloidal Ridges on Europa: A Xenoarchaeological Analogue

8 May 2012, 02:15 UTC When seriously considering the possibility of xenoarchaeology as a practicable science, I’ve proposed (as have others) the endeavor to be deeply interdisciplinary. Solid archaeological methodologies will need to be complemented with and modified by a strong foundation in planetary science. I also often suggest that the practice of xenoarchaeology will find its most frequent utility in “debunking” rushed, [...] Jovian moon Europa. (Credit: NASA NSSDC) When seriously considering the possibility of xenoarchaeology as a practicable science, I’ve proposed (as have others) the endeavor to be deeply interdisciplinary. Solid archaeological methodologies will need to be complemented with and modified by a strong foundation in planetary science. I also often suggest that the practice of xenoarchaeology will find its most frequent utility in “debunking” rushed, biased, or outright pseudoscientific claims. In many cases, it seems sensible to presume this may appear strictly as planetary science applied in a feature-analysis context. So, with this in mind, I’d like to look at the mysterious case of “cycloids,” or specifically, “cycloidal ridges” on Jupiter’s second moon, Europa: Cycloidal double ridges viewed in the northern hemisphere of Europa (60°N, 80°W): Striking evidence that nature can produce apparently-artifical features on other worlds. (Modified from Hoppa et al., ...

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