Therefore the nebular fragments must be big enough to reflect the light intactas big as sand grains, peas, marbles, melons or mountains.
He propounded the nebular hypothesis before Kant and LaPlace, anticipated all Scandinavian geologists in his studies of paleontology, was first to explain the phenomenon of .
As this nebular mass became smaller and denser, it whirled faster, until centrifugal force threw off a ring of gas.