Joel Watts shared a cool Star Trek version of the famous Beatles Abbey Road photo. That led me to the web site of an artist who goes by the nickname “Rabbittooth” who has done a number of photomanipulations to place a very large number of different actors into StarFleet uniforms. I particularly liked these, because they involve faces familiar from one sci-fi show being shifted into another. Click through to see more.
The above are not contradictory – when 900 years old you are, where many different styles of StarFleet uniform during your career you will!