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Nature 459, 781-782 (11 June 2009) | doi:10.1038/459781a; Published online 10 June 2009
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Planetary science: The Solar System's extended shelf life
Gregory Laughlin1
Abstract
Simulations show that orbital chaos can lead to collisions between Earth and the inner planets. But Einstein's tweaks to Newton's theory of gravity render these ruinous outcomes unlikely in the next few billion years.
In the midst of a seemingly endless torrent of baleful economic and environmental news, a dispatch from the field of celestial dynamics manages to sound a note of definite cheer. On page 817 of this issue, Laskar and Gastineau1 report the outcome of a huge array of computer simulations.
- Gregory Laughlin is in the Department of Astronomy and Astrophysics, University of California Santa Cruz, Santa Cruz, California 95064, USA.
Email: glaughli@ucsc.edu
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