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 ...

There has been no in-canon dialogue explaining why the Starfleet logo looks the way it does ... the red uniforms indicated engineering and security, and the blue uniforms indicated science ...

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.