A vast glowing bloom appeared along Australia’s southern coast.

Far above Earth, orbiting satellites occasionally capture scenes that seem almost impossible at first glance. In one stretch of ocean off Australia’s southern coastline, sensors detected a sweeping band of glowing turquoise light spreading across hundreds of miles of water. The brightness was strong enough to stand out clearly in satellite imagery, forming a luminous ribbon along the edge of the continent. Scientists examining the data realized they were looking at an unusually large marine event unfolding across the sea’s surface. The phenomenon appears tied to microscopic life flourishing in extraordinary numbers, creating a spectacle visible from space.



