1
existing, involving, or coming from outside the limits of the earth
2
being without apparent weight
3
controlled by themselves
4
the investigation of unknown regions
5
a vehicle for travel beyond the earth's atmosphere
6
the biological system containing the entire earth and its living organisms
7
a round, windowlike opening in the side of a ship
8
a post or settlement in a foreign place or in foreign surroundings.
9
a space vehicle designed to be launched from earth by rockets that detach in flight, and that can be landed so as to be used again
10
to move or travel around in an orbital or rounded path
11
a satellite sent into space to examine conditions and report back
12
a group of organisms of the same kind in the same area.
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