If you have to choose between the two encyclopedias, The New Solar System offers better value and far greater entertainment; if you obtain both, you will have on your bookshelf a complete premillennial guide to the multitude of worlds within our solar-system
The new solar-system computations provide insights into one of the most perplexing, unsolved issues in celestial mechanics: Is the solar system stable?
The newest solar-system calculations reveal that the outer solar system, although not completely free of chaos, is actually much more regular than the inner solar system, Laskar says.
That result goes a long way toward settling a long-standing question as to whether this so-called dipole effect represents the remnant of some kind of structure or density fluctuation present in the early universe, or is simply the result of solar-system
and galactic motion.