Aside from Spock's bangs and the Vulcan salute, Star Trek’s Starfleet insignia, often referred to as the "delta," is one of the most recognizable images in science fiction. Feat ...
The present-day insignia was introduced in 1947 with the development of the US Air Force and the reorganization of the ...
The Air Force is tightening its standards on uniform ... Monday on the proliferation of duty identifier tabs, which are ...