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24 July, 12:18

The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium. According to modern science, where did the elements heavier than hydrogen and helium come from? The terrestrial planets are made almost entirely of elements heavier than hydrogen and helium. According to modern science, where did the elements heavier than hydrogen and helium come from? They were produced by stars that lived and died before our solar system was born. They have been present in the universe since its birth. They were produced by gravity in the solar nebula as it collapsed. They were made by chemical reactions in interstellar gas.

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  1. 24 July, 14:19
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    They were produced by stars that lived and died before our solar system was born.

    Explanation:

    According to what it's understood today, all elements heavier than hydrogen (including helium and excluding some that were created in laboratories) are created through nuclear fusion in the core of stars.

    They start fusing hydrogen into helium, then as the star grows older helium is fused into beryllium and so on for all the periodic table.

    So as far as science understands it today it's a literal truth that we are made of stars. (as almost everything else)
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