NASA, French Space Laser Measures Massive Migration of Ocean Animals

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 lase

November 27, 2019
from NASA https://ift.tt/2XTkPRt
via TT