Ever since man perceived that the solar system is a cohort of planets revolving around a central sun, at different distances but in the same direction and in almost the same plane, he has wondered how ...

THE object of the present treatise is to establish in a modified form the nebular theory of Laplace, by the introduction of some original views which have long occupied the attention of the author.

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Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A rare form of helium may have flooded Earth’s core during the ...