Atomic explosions inside planets

There is evidence of one or more fission explosions inside planets. Under gravitational differentiation, heavy elements settle towards the centre. Uranium forms together with some other heavy elements (over and above what is left in solution in iron etc.) an innermost core. With time an explosive layer of few cms thickness separtes from the bulk uranium since 235U is slightly less heavy. The explosion may also use other fissile elements formed from the fertile elements 235U and 232Th since these are in close proximity to the uranium reactor having about 33 per cent 235U about 5 billion years ago when the planets were put together. The relics of such explosions are the expelled satellites including the Moon and the rings of Saturn etc. The rings are formed when the expelled material stays within the Roche limit. The Moon is formed around a scab of earth's crust which is also clear from its eccentric mass distribution. (author)