Harold Urey
... that Harold Urey showed that Earth's early atmosphere might spontaneously produce amino acids, commonly considered the building blocks of life?
... that <b id="mwpw"><a href="./Harold_Urey" id="mwqA" rel="mw:WikiLink" title="Harold Urey">Harold Urey</a></b> <a class="mw-redirect" href="./Miller-Urey_experiment" id="mwqQ" rel="mw:WikiLink" title="Miller-Urey experiment">showed that</a> Earth's early atmosphere might spontaneously produce <a class="mw-redirect" href="./Amino_acids" id="mwqg" rel="mw:WikiLink" title="Amino acids">amino acids</a>, commonly considered the building blocks of life?