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There is a page named "File:Learjet Observatory Telescope.jpg" on Wikipedia
DescriptionLearjet Observatory Telescope.jpg English: Left: The Learjet Observatory (Learjet 24B aircraft) flying above California in the early 1970’s...(872 × 900 (301 KB)) - 12:24, 11 January 2024
English Left: The Learjet Observatory (Learjet 24B aircraft) flying above California in the early 1970’s. Right: Scientist Carl Gillespie using a 12-inch...(2,028 × 900 (485 KB)) - 12:24, 11 January 2024
DescriptionMaking the Invisible Visible- A History of the Spitzer Infrared Telescope Facility (1971–2003) - NASA Monographs in Aerospace History, No. 47 (2017)...(1,275 × 1,650 (4.3 MB)) - 14:22, 12 October 2022
DescriptionLearjet Observatory.jpg English: Left: The Learjet Observatory (Learjet 24B aircraft) flying above California in the early 1970’s. The telescope was...(1,096 × 894 (189 KB)) - 12:23, 11 January 2024
not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI...(2,534 × 2,018 (3.33 MB)) - 16:33, 5 December 2023
not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI...(2,559 × 2,048 (4.61 MB)) - 16:33, 5 December 2023
