Satellites End 400-Year Milky-Sea Mystery in the Indian Ocean
Centuries of sailors reporting vast, pale-glowing patches at sea have been confirmed as real thanks to satellite observations. Beginning with a 2005 Java Sea sighting and a 2019 Indonesian event, researchers link the glow to dense colonies of Vibrio harveyi bacteria coordinating via quorum sensing, living in mucus that calms the surface. The pattern of occurrences appears related to climate cycles like the Indian Ocean Dipole and ENSO, raising the possibility of predicting milky seas and guiding future sampling to study the phenomenon more closely.
