These green and blue swirls in the Bering Sea reveal the bottom of the food chain in the ocean. Microscopic organisms called phytoplankton, which are important to fish populations, may be too small to be seen individually, but in vast numbers they are visible from space. The white clouds in the image look like bubbles in an aquarium. ~USGS
Download this image from USGS (7801 x 8400 px, 18 MB).
Landsat 8 images the entire Earth every 16 days in an 8-day offset from Landsat 7. Data collected by the instruments onboard the satellite are available to download at no charge from EarthExplorer, GloVis, or the LandsatLook Viewer within 24 hours of acquisition. ~USGS