Meteorites are thought to have delivered many of the materials necessary for life, which might even include deadly cyanide. (Credit: NASA’s GSFC Conceptual Image Lab)

Science is still uncertain as to how exactly life first arose. While experiments with electricity and simple ingredients can make amino acids, the building blocks of proteins and the framework for all living things as we know them, how to make the jump from lifeless chains of molecules to biological life is still unknown.

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