Is Planet Nine Hiding at the Edge of the Solar System?

An undiscovered planet could be hiding well beyond the orbit of Neptune. However, some astronomers now believe it may take 1,000 years to find that distant world.

The solar system is divided into several regions. The area closest to the Sun consists of small, rocky, terrestrial planets — Mercury, Venus, Earth, and Mars. Further these worlds lie the gas giants — Jupiter, Saturn, Uranus, and Neptune. Beyond this region are the small, icy bodies, including Pluto, orbiting in the distant Kuiper Belt. Orbits of these small bodies suggest…

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The Cosmic Companion

Written by

James Maynard is the author of two books, and thousands of articles about space and science. E-mail: thecosmiccompanion@gmail.com

Alexandria Science

The e-magazine of science, from astronomy to zoology

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