Shock synthesis

Shock synthesis is the process of complex organic chemical creation through high velocity impact on simple amino acids, theorized to take place when a comet strikes a planetary body, or through the shock-wave created by a thunder clap.{{Cite journal|last=Bar-nun|first=A.|date=1975|title=Shock Synthesis of Amino Acids II|pmid=168532|journal=Origins of Life|volume=6|issue=1–2|pages=109–115|bibcode=1975OrLi....6..109B|doi=10.1007/BF01372395|s2cid=39998020}} Hyper-velocity impact shock of a typical comet ice mixture produced several amino acids after hydrolysis. These include equal amounts of D- and L-alanine, and the non-protein amino acids α-aminoisobutyric acid and isovaline as well as their precursors.{{Cite journal|last=Martins, Price, Goldman, Sephton & Burchell|first=Zita, Mark C., Nir, Mark A., & Mark J.|date=6 April 2013|title=Shock synthesis of amino acids from impacting cometary and icy planet surface analogues|journal=Nature Geoscience|volume=6|issue=12|pages=1045–1049|bibcode=2013NatGe...6.1045M|doi=10.1038/ngeo1930}}