Rank 45 documents Spitzer — the Space Infrared Telescope Facility and final launched member of NASA's Great Observatories programme. Launched 25 August 2003 aboard Delta II Heavy from Cape Canaveral into an Earth-trailing heliocentric orbit, the 950 kg observatory carried a cryogenic helium dewar cooling IRAC, IRS, and MIPS instruments for 5.5 years of cold mission operations. JPL and Caltech teams mapped cold dust in stellar nurseries, resolved the Helix Nebula's infrared structure, and captured the first direct light curves from exoplanet atmospheres. After cryogen depletion in 2009, the warm extended mission continued with IRAC until retirement 30 January 2020 — proving infrared science could persist without liquid helium. Spitzer's TRAPPIST-1 observations and Kuiper Belt object targets for New Horizons extended its legacy across subfields. Wallimilist renders Spitzer diagonal with spiral galaxy and exoplanet phase curve graph exactly as the master PNG dictates — Great Observatories kicker, cream-navy palette, and curator copy on infrared astronomy heritage.