An environment in which we can survive outside the ship.
If sometimes we're hard and cold, it's because we have to be to survive outside the Empire.
This bacterium also cannot survive outside a human for more than a few days.
But if we're going to survive outside we'll need lots of people.
Change into this creature so that we can survive outside the host.
All the more so when a baby at 20 weeks can now survive outside the womb.
The latter was needed both for its general utility and so that "we can survive outside Europe".
She started to understand that he might not survive outside the hospital.
It appears to be robust enough to survive outside a human body for hours.
Nobody could survive all night outside my room in this storm.