The Search for Planet X

  • by Michael D. Lemonick
  • Narrated by Jef Holbrook
  • 0 hrs and 20 mins
  • Unabridged Audiobook

Publisher's Summary

Something very odd seems to be going on out beyond Pluto. Astronomers have known for more than two decades that the tiny former planet is not alone at the edge of the solar system: it is part of a vast cloud of icy objects known collectively as the Kuiper belt. But unlike most of their fellow travelers, and unlike the planets and most asteroids, which orbit between Mars and Jupiter, a small handful of Kuiper belt objects, or KBOs, have orbits that are decidedly weird. For one thing, they take unusually elongated paths around the sun, unlike the roughly circular orbits of most planetary bodies.


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Customer Reviews

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Out There Somewhere

A comprehensive review of searches being made for an as yet uncharted planet with no conclusions drawn.
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- Moira Chastain

Book Details

  • Release Date: 01-22-2016
  • Publisher: Scientific American