rootone,
maybe that is the answer. assuming that the heavier elements were homogenous in the original nebula, and mercury, venus, Earth and Mars are only more dense because the lighter elements have been blown away by the sun.
Guys,
thank you all for your responses. however, I am still not certain that the question has been answered. I shall always feel that there is something amiss with the current theory.
thank you mathman, but it still does not explain why the earth, at least, has so much iron, etc., or why when we go beyond Mars we run into the gas giants.
gravity forces in the original nebula should have brought all of the heavy elements to the centre of the solar system, while it was still...
Dear All,I understand that one of the most popular theories concerning the origin of the solar system begins with cloud of gas and dust (called a nebula), assumed to be the remnants of a supernova; in order to explain elements such as iron and above.That this nebula begins to flatten into a...