https://www.esri.com/en-us/industries/blog/articles/mission-accomplished-photos-from-the-challenger-deep-expedition https://www.esri.com/en-us/industries/blog/a

https://www.esri.com/en-us/industries/blog/articles/mission-accomplished-photos-from-the-challenger-deep-expedition https://www.esri.com/en-us/industries/blog/articles/mission-... Seems like this is better, or at least maybe a primary source?