Nobel Prize in Chemistry 2026 to Henri B. Kagan and Kenso Soai
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Henri B. Kagan and Kenso Soai won the 2026 Nobel Prize in Chemistry for discoveries enabling homochirality.
Kagan and Soai are awarded the Nobel Prize in Chemistry 2026 for discovering non-linear effects and autocatalysis in asymmetric organic synthesis. Kagan in 1986 showed how to create a greater excess of one mirror image. Soai in 1995 designed the first reaction with potential for homochirality, and in 2003 achieved a reaction forming only one mirror image without an external chiral source.
What commenters are saying
Commenters explained that Soai's key feat was not discovering asymmetric synthesis but demonstrating spontaneous chiral symmetry breaking: the chiral product catalyzes its own formation, amplifying a tiny random imbalance into large enantiomeric excess without an external chiral source. Several noted that early abiotic asymmetry examples existed (Pasteur, circularly polarized light). One commenter clarified the Soai reaction produces either left or right product randomly per run, not a 50-50 mix. Another noted the relevance to abiogenesis and mirror-image life.