Mars

Mars is a planet residing in the Solar System, with its inhabitants being comprised of Green Martians.

History
Mars was a long-standing planet with its inhabitants being green-skinned aliens capable of telekinesis, being known as Green Martians. However, a culling occurred, resulting in the deaths of all but one Green Martian: J'onn J'onzz. Having lost his family, J'onn left the planet and has since been living on Earth, becoming the vigilante Martian Manhunter and a founding member of the Justice League of America.

Starro Siege (2020)
J'onn reflected on the deaths of his family, K'hym and M'yri'ah, wistfully wishing they were there alongside him.

Former residents

 * J'onn J'onzz (relocated to Earth)

Deceased residents

 * K'hym J'onzz
 * M'yri'ah J'onzz

Season 1

 * Starro Attacks! (flashback)

Behind the scenes

 * Mars is a real life planet in the solar system. However, in the comics, it is also the home to the Green and White Martians, both at war with one another. After the Green Martians were exterminated, J'onn J'onzz was left as the sole survivor, sending him to Earth to become the Martian Manhunter. Mars debuted in All-American Comics #1 in 1939.