Original sentence: The theory regularly proposed is the possibility that the Nazis had the capability for spaceflight due to their advanced technology in engineering as well as the exo-atmospheric rocket saucers of the Miethe and Schriever type, which are shown in Terziski’s documentation with pictures and designs
Edited sentence: The theory regularly proposed is the possibility that the Nazis had the capability for spaceflight due to their advanced technology in engineering as well as the exo-atmospheric rocket saucers of the Miethe and Schriever type, which are clearly exemplified in Terziski’s documentation with exemplary pictures and designs