Thus the planetesimal theory thought out by Chamberlin 30 years ago and elaborated with his Chicago University associate, Astronomer Forest Ray Moulton.
His theory, the planetesimal, he ex pounded again in a new book published only last month The Two Solar Families the Sun's Children (University of Chicago Press, $2.
Despite general acceptance of Chicago's late Thomas Chrowder Chamberlin's planetesimal theory of Earth's origin, Oxford's Herbert Hall Turner opined that science can never tell the .
Vega's hot dust from icy planetesimals scattered inward by an outward-migrating planetary system Vega has been shown to host multiple dust populations, including both hot exo-zodiacal dust at sub-AU radii and a cold debris disk extending beyond 100 AU. We use dynamical simulations to show how Vega's hot dust can be created by long-range gravitational scattering of planetesimals from its cold outer regions. Planetesimals are scattered progressively inward by a system of 5-7 planets from 30 ...
March 28, 2014 - SpaceRef