Flag of the Martian Congressional Republic, a fictional state from the The Expanse television series
Based on the flag, present in the The Expanse television series, in the episode "The Weeping Somnambulist" (season 3, episode 9).
Image created by User:Artemis Andromeda, based on the flag designed by Jonathan Hunter, present in the The Expanse television series, in the episode "The Weeping Somnambulist" (season 3, episode 9) and the images provided in artstation.com.