So, dear readers, this is the last we shall ever hear of it. On the original "Star Trek" series, the delta logo was only seen on the uniforms of those serving on board the U.S.S. Enterprise.

NASA influenced Starfleet's delta symbol, connecting modern space exploration to the futuristic world of Star Trek. The US Air Force's emblem also inspired the Starfleet delta, symbolizing speed ...

In Star Trek lore, few symbols are as iconic as the Starfleet insignia—a delta-shaped emblem that has come to represent the spirit of exploration and unity in the United Federation of Planets.