The chest-worn insignia has been a consistent detail throughout the "Star Trek" franchise, even as the insignias gradually changed look and function over the decades. On the original series ...

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 ...