possibly because if we think about it we, earth are on 1 branch of the solar system. the solar system is massive and there are plenty of other galaxies. we cant be this exclusive, there has to be at least 1 other organism in the universe out there apart from Earth.
No, so far we have found no life in outer space. Life may well exist in outer space, but we haven't found it yet.
They study how long to get to planets and if there is life in outer space.
Astronomy is the study of heavenly bodies.
Exobiology.
Exobiology, is ths study of phenomena occurring in the upper atmosphere or celestial objects in outer space.
It is impossible to know at our stage of development. Humans today can only see a small part of space. Maybe one day human or robots can adventure into space and possible find life in outer space.
speleology
outer (as in "outer space")
Only if they are in an enclosed capsule with a life-support system.
There is no antonym for outer space.
outer (as in "outer space")
they built it in outer space