The Dwarf Planet That Came in from the Cold—Maybe

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Source:  By Ron Cowen, EoS, Earth & Space Science News, AGU

Excerpt: ...The presence of ammonia-rich clay on much of the surface of Ceres suggests that this dwarf planet—the largest object in the asteroid belt—may have formed far out in the solar system, then wandered in....

https://eos.org/articles/the-dwarf-planet-that-came-in-from-the-cold-maybe

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