Research stations situated in hostile settings, such as non-terraformed planets, are built airtight, with artificially raised or lowered pressure to create environments friendly to researchers. These research stations can be used to study phenomena that would be otherwise inaccessible, such as smog atmospheres, flare stars, ice planets, and asteroids. Xi’an research stations show a great deal of resilience in high-pressure atmospheres. Human researchers have yet to crack the secret behind this technology.