Fluorescent Amino Acids on Europa: A Search for Life in the Ice

Europa's icy surface may contain fluorescent amino acids, potential biosignatures of life from its subsurface ocean. Scientists modeled how radiation and UV light degrade these molecules, finding that high-latitude regions offer the best preservation. A future spacecraft using laser-induced fluorescence could detect these compounds, especially in recently resurfaced ice or potential plumes. NASA’s Europa Clipper mission may help confirm whether Europa harbors the building blocks of life.