News: Spitzer Space Telescope will conclude its mission on 30th January 2020 Facts: About Spitzer Space Telescope Launched in 2003, it is a space-borne observatory and is part of NASA’s “Great Observatories”. It uses an ultra-sensitive infrared telescope to study asteroids, comets, planets and distant galaxies. Achievements: First telescope to detect light from an exoplanet… Continue reading Explained: What is NASA’s Spitzer Space Telescope?