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MNA Science & Tech Desk: NASA’s Spitzer Space Telescope, the youngest member of the “Great Observatory” programme, has completed 15 years in space. The Great Observatories are four big-ticket space telescopes — Spitzer, Hubble Space Telescope, the Compton Gamma Ray Observatory (CGRO), and the Chandra X-ray Observatory — designed to view the universe in different and complementary wavelengths of light. Launched into solar orbit on 25 August 2003, Spitzer was initially scheduled for a minimum 2.5-year primary mission. But the space telescope has lasted far beyond its expected lifetime, the US space agency said in a statement. Celebrating Spitzer’s incredible ...
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