Phytoplankton bloom (green and blue swirls) near the Pribilof Islands off the coast of Alaska, in the Bering Sea. The turquoise waters are likely colored by a type of phytoplankton called coccolithophores. This Sept. 22, 2014, image was created with Landsat 8 data. The greens and blues of ocean color from NASA satellite data have provided new insights into how climate and ecosystem processes affect the growth cycles of phytoplankton - microscopic aquatic plants important for fish populations and Earth's carbon cycle.