Planets marshal the cometary parade; how comets march into the inner solar system.

From: Science News | Date: July 27, 1996| Author: Cowen, Ron | Copyright information

Research conducted by Levison and Martin J. Duncan reveals that the four, large outer planets play a role in bringing comets into the solar system. The placement of Neptune, Uranus, Saturn and Jupiter in relation to one another affects the orbits of comets.

A place for everything and everything in its place. That old proverb takes on new meaning when it comes to the inner workings of the solar system. A new study reveals that the locations of the four large, outer planets play a cr...

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