File:Learjet Observatory Telescope.jpg

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English: Left: The Learjet Observatory (Learjet 24B aircraft) flying above California in the early 1970’s. The telescope was just in front of the wing. Right: Scientist Carl Gillespie using a 12-inch infrared telescope while flying aboard the Learjet 23 aircraft at 50,000 feet in 1968.

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1968, 1970s

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https://www.nasa.gov/aeronautics/history-of-airborne-astronomy-at-nasa/

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NASA

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	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are 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.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:24, 11 January 2024		872 × 900 (301 KB)	Artem.G (talk \| contribs)	File:Learjet in and out.jpg cropped 57 % horizontally using CropTool with lossless mode.

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