The Importance of Chirality
One of life’s most intriguing mysteries is chirality, or “handedness,” where molecules exist in left- and right-handed forms but living organisms almost exclusively use one type. Scientists have long pondered how this preference emerged from a prebiotic world that should have produced equal amounts of both. Laboratory experiments show that certain conditions can favor one chiral form over another, but the exact process remains elusive. Understanding how chirality arose is key to unraveling the earliest steps of life’s unique chemistry.