Reuters: Scientists from the UK's National Oceanography Center (NOC) have set their sights on unmasking the ocean's 'twilight zone' - the area between 100 and 1000 meters deep where a small amount of the sun's light can still penetrate. This area has proved particularly troublesome for researchers to study, as scientific instruments are typically designed to either sink to the ocean floor or float on the surface. But this elusive region is teeming with ocean life that plays a key role in keeping atmospheric...