#cityonmarsUnmoderated tagAll postsExplore CommunitiesTrending CommunitiesNewcomers' CommunitySteemit FeedbackSteemitCryptoAcademyআমার বাংলা ব্লগKorea • 한국 • KR • KOSTEEM CN/中文Steem AllianceWORLD OF XPILARAVLE 일상SCT.암호화폐.CryptoTron Fan ClubBeauty of Creativity#cityonmarsTrendingHotNewPayoutsMutedjohnwicks (25)in #cityonmars • 2 years agoMars City: A Global EffortMars City is a proposed human settlement on Mars. The project is still in its early stages, but it has already…