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NASA retires space telescope that unveiled mysteries of the universe

Jan 31, 2020 13:51 IST

NASA has finally said goodbye to one of its four Great Observatories--the Spitzer Space Telescope--after more than 16 years of discovering the mysteries of the universe with infrared vision. Launched in 2003, Spitzer studied comets and asteroids, evolution of galaxies from the ancient universe to today, the composition of interstellar dust and exoplanets that are far, far away. It found a previously unidentified ring around Saturn but would be best remembered for discovering seven planets the size of Earth around the star Trappist-1.

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