Space is becoming the next medium for business opportunities, advancements in technologies and exploration for inhabiting planets, moons and areas outside our planet. Companies are developing systems that would permit short-term and, eventually, long-term human inhabitation of the moon, Mars and other extraterrestrial bodies; start-up firms are focusing on capsules and rockets for human spaceflight. With regulations relating to space launch and travel established and continually being reviewed in numerous countries, ASHRAE has an opportunity to propose standards, guidelines and codes relating to the indoor environment of extraterrestrial transport vessels, waypoint stations and buildings.