NASA Goddard - PACE, the Plankton, Aerosol, Cloud and ocean Ecosystem mission, views our entire planet every day, returning data at a cadence that allows scientists to track and monitor the rapidly changing atmosphere and ocean, including cloud formatiPACE, the Plankton, Aerosol, Cloud and ocean Ecosystem mission, views our entire planet every day, returning data at a cadence that allows scientists to track and monitor the rapidly changing atmosphere and ocean, including cloud formation, aerosol movement, and differences in microscopic ocean life over time.