We are led to believe that the "Big Bang" event was an explosive event, exploding debris from a singularity - nothing. We are then further misled into thinking that the Universe as we now know it accumulated from the explosive debris cast off from this Big Bang explosive event - your meteorites - their dust/rocks/etc; surely it would be material transitional from pure energy to ?plasma to matter.

Our Moon. With small size and minimal gravity our Moon failed to retain the power to segregate into mantle and core. Instead, as the elements developed and the Moon cooled, a crust developed. It trapped a huge volume of gas, which eventually exploded creating thousands of huge craters over the entire Moon's surface. With further growth/expansion as the dense dark matter evolved into less dense elements, more pressure built up in parts of the Moon, creating thousands of fractures which allowed molten magma to flow out creating the maria and obliterating the older explosion craters beneath the maria. Lingering volcanism persisted until all of the dense matter evolved into elements and there was no energy for growth/expansion remaining after about 2.5 billion years. So our Moon became a dead planet, yet still retains some heat in the subsurface.