Research Conducted Using Cloud-Aerosol Lidar And Infrared Pathfinder Satellite Observations (CALIPSO) Satellite

Every night, under the cover of darkness, countless small sea creatures – from squid to krill – swim from the ocean depths to near the surface to feed. This vast animal migration – the largest on the planet and a critical part of Earth’s climate system – has been observed globally for the first time thanks to an unexpected use of a space-based laser.