Spitzer Space Telescope
LocationSpace
Year2003
Size0.85 m mirror
OperatorNASA
About Spitzer Space Telescope
An infrared space telescope that discovered the TRAPPIST-1 system of 7 Earth-sized planets. Operated for 16 years, far beyond its 5-year mission. The first telescope to directly detect light from exoplanets. Decommissioned in 2020 when coolant ran out.
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