Pluto’s ice-capped peaks are like Earth’s—but not – Ars Technica

Enlarge/ What dusts the peaks of Cthulhu? is not an arcane riddle.
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We can often use our knowledge of planet Earth to explain the things we see on other worlds, although we may have to tweak the physics to account for a different temperature or a tenuous atmosphere. But planetary scientists cant always assume that a familiar landscape feature formed in a familiar way.
When the New Horizons spacecraft gave us our first close-up look at Pluto, there were alien wo…

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