After more than 16 years studying the Universe in infrared light, NASA’s Spitzer Space Telescope has been placed in safe mode. NASA’s Spitzer Space Telescope was placed in safe mode on January 30, 2020 at 5:30 p.m. EST (2:30 p.m. PST). Image credit: NASA / JPL-Caltech. Launched in 2003, Spitzer was one of NASA’s four Great Observatories, along with the Hubble Space Telescope, the Chandra X-ray Observatory and the Compton Gamma Ray Observatory. “Spitzer...
