proxemics.
its sociology.
numbers
Astronomers They study space and stars and stuff
Astronology is the study of the moon, stars and other objects in space.
to study Earth and space
they take pictures of space :)
This study is called astronomy.
Assuming you mean "outer space", those people are called astronomers.
getting rocks from other planets, discovering constellations with telescopes, satellites, and many other ways i hope this helps
Ethnobatamy is the study of the relationship between plants and people
Ergonomics
Astrounauts are people who go into space by rocket and discover what is up there in space. They are also people who study astronomy...
In modern usage they are the study of number in this context.