California nebula stars in final mosaic by NASA's Spitzer

Five days before NASA's Spitzer Space Telescope ended its mission on Jan. 30, 2020, scientists used the spacecraft's infrared camera to take multiple images of a region known as the California Nebula--a fitting target considering the mission's management and science operations were both based in Southern California at NASA's Jet Propulsion Laboratory and Caltech. This mosaic is made from those images. It is the final mosaic image taken by Spitzer and one of hundreds the spacecraft captured throu...