Recently my cousin and family member Paul Liebhardt passed away. He worked at NASA for a time and then became a photographer. While a photographer, he traveled internationally. His work as a photographer is well known. The remembrance celebration (link below) shows nice videos and writing of his students coming together from various paths of life sharing his teachings. Archive.org hopefully forever stores snapshots of his website and some of his photos.
A news article of remembrance celebration
He use to photograph for Semester at Sea, which gave a nice memorial tribute
https://www.semesteratsea.org/a-love-letter-to-what-it-means-to-be-human-remembering-paul-liebhardt
The achive.org of his personal website
https://web.archive.org/web/20190127182433/http://www.paulliebhardt.com/about