Microlightning: A New Hypothesis for the Origin of Life
Challenging the established Miller-Urey experiment, Stanford University research suggests that 'microlightning' discharges between water droplets from splashing waves or waterfalls on early Earth, rather than large lightning strikes, may have been the key to life's origin. The study found that the small electrical charges produced by water spray were sufficient to trigger chemical reactions in a mixture of gases—nitrogen, methane, carbon dioxide, and ammonia—thought to be present on early Earth, resulting in the formation of organic molecules including uracil, a building block of life. This offers a new perspective on abiogenesis, addressing criticisms of the Miller-Urey hypothesis concerning the infrequency of large lightning strikes and the vastness of the ocean.