File:Dr. Ernst Stuhlinger.jpg
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Original file (4,645 × 3,328 pixels, file size: 3.23 MB, MIME type: image/jpeg)
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Summary
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English: In 1962, Dr. Stuhlinger, then director of the Space Sciences Laboratory at the Marshall Space Flight Center, had planned a mission to Mars utilizing his Ion-Electric propulsion system. You can see the three different models on the table before him. |
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| Source | https://www.flickr.com/photos/57873672@N07/16628577004/ | |||
| Author | Unknown author | |||
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Licensing
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This image was originally posted to Flickr by nolarobert at https://flickr.com/photos/57873672@N07/16628577004. It was reviewed on 20 February 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
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This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:55, 20 February 2024 | | 4,645 × 3,328 (3.23 MB) | Endebyrd | Uploaded a work by Robert Karma from https://www.flickr.com/photos/57873672@N07/16628577004/ with UploadWizard |
File usage
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