The little telescope that could' has retired. It changed how we see the universe | CNN
Spitzer Space Telescope - NASA Science
Spitzer Space Telescope - Wikipedia
Spitzer Space Telescope enters 'Beyond' phase - SpaceFlight Insider
Could We Resurrect the Spitzer Space Telescope? - Universe Today
Spitzer and NASA's 'Great Observatories' Space Telescopes | Engineers confirm NASA's Spitzer Space Telescope mission ended today. The spacecraft is in safe mode, as planned. In 16+ years in space, Spitzer changed...
NASA prepares to shut down Spitzer Space Telescope - SpaceNews
NASA news: Spitzer telescope's discoveries celebrated as NASA retires the mission | Science | News | Express.co.uk
Spitzer Space Telescope | Discoveries, Mission, & Facts | Britannica