Formation of Planets, A New Theory

Geology and planetary science have given explanations for the creation of the Earth. Allegedly 4 billion years ago there was a hot mass of material which gradually formed into the Earth and cooled over millions of years. New evidence may suggest the Earth may have been completely different in its early stages. Today's programme explores a theory put forward by researcher Peter Woodhead who suggests a completely different sequence of events to arrive at today's Earth. The theory seems to tie many loose ends together, such as "where did the oceans come from", "why do planets become gas giants", "why do the continents fit together", "was gravity lower in the time of the dinosaurs" and "is gravity what we think". Andrew Johnson has worked with Peter Woodhead to help derive equations to explain how gravity works in this new model. They have authored two papers on the new theory.

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