Vex

The Vex are time-traveling robots who are hostile to the Guardians. Their heads are cone-shaped, with a red photoreceptor at the center. Their fortress is known as the Citadel and is presumably located on Venus.

Trivia
The Vex may have their name derived from the VEX Robotics Design System, a kit intended to introduce newcomers to the world of robotics.

List of appearances

 * Destiny