a settlement on a frontier or in a faraway place
Sentences:
NASA has been working on developing an
outpost for living on the moon.
In science class, our teachers had us draw an
outpost for living on another planet.
More Information:
http://www.nasa.gov/mission_pages/exploration/mmb/lunar_architecture.html
http://www.nasa.gov/centers/goddard/news/series/moon/