We know living things come from other living things. But how did the VERY FIRST living thing get here? Did it just pop out of nowhere? Can scientists make new life from scratch? If we took all the ingredients for life and put them on another planet, would life start there too after a long, long time?
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It probably developed from a non-living thing called a [self-replicating molecule](https://www.scientificamerican.com/article/life-rsquo-s-first-molecule-was-protein-not-rna-new-model-suggests/), a combination of atoms that causes chemical reactions which create more of the same type of molecule. DNA is an example of a self-replicating molecule, but the one that led to the original life form was probably something else; there’s lots of speculation and theorizing about what kind of molecule it was, as you can see in the article I linked above.
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