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An Extreme Cousin for Pluto? Possible Dwarf Planet Discovered at Solar System’s Edge

A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the School of Natural Sciences, has discovered an extraordinary trans-Neptunian object (TNO) at the edge of our solar system. The TNO is potentially large enough to qualify as a dwarf planet, the same category as the much more well-known Pluto. The discovery has significant implications for our understanding of the Kuiper Belt and hypotheses that surround the existence of Planet Nine.

Institute Letter Spring 2025

Uncover how beagles became vital yet overlooked contributors to scientific knowledge during World War II. Delve into the cosmic mystery of dark matter. Explore an intriguing collection of marginalia. Learn how archaeological context can transform our understanding of ancient societies. Discover the Institute’s relationship to the "cognitive revolution." Read research news covering everything from DNA and criminality to a three-dimensional mathematical breakthrough.

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