The first elements to form at the beginning of the universe were 92% hydrogen and 8% helium, with the exception of a very small amount of lithium. The remaining elements were formed by stellar nucleosynthesis. That is, by the fusion...
I know without saying that the earth is very small compared to the universe Returning from here, we first reach our neighbor, the Moon, which looks very close from Earth, but the Moon is not very close, which is 384400km....
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