PACE Opens a Multispectral Window on Earth’s Oceans, Atmosphere and Life

NASA’s PACE satellite uses hyperspectral imaging and polarimeters to monitor Earth’s oceans, atmosphere, and land—tracking dust and wildfire smoke plumes, mapping three-dimensional cloud structure, identifying ship-induced cloud effects, and detecting phytoplankton types (including diatoms) and blooms such as cyanobacteria in the Great Lakes and Karenia off Australia. These data help warn water managers, support emergency response, and deepen climate and ocean ecosystem understanding, while Artemis II imagery showcases Earth from space.