*Natives of the planet Argos (P3X-8596), the Argosians initially appear to the Stargate Sg-1 team as civilization of beautiful, happy people who celebrate while the sun shines but fall asleep the minute it sets. In the episode "Brief Candle," the SG-1 team discovers that the Argosians' lifecycle is merely 100 days. Dr. Carter discovers their shortened lifespans to be the result of nanocytes (microscopic robots) in their bloodstream, placed there by Pelops, a Goa'uld whom the Argosians worship, as part of a cruel experiment.
*Source: back of card.