Spitzer - One of NASA's most powerful space telescopes goes into dark after 16-year career

NASA has formally said goodbye to the Spitzer space telescope. The US space agency had been using the Spitzer space telescope for the past 16 years, for making use of infrared light to unveil otherwise invisible features of the universe, including seven planets the size of Earth around the star Trappist-1. Spitzer, which was sent into orbit and began astronomical observations in 2003, is one of the powerful telescopes exploring things beyond the range of the human eye, examining electromagnetic radiation of various wavelengths, just like the Hubble, Compton and Chandra telescopes do.

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