Astronomy
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
Nothing. That is why they call it outer space. the only things that are out there are stars, rocks, planets and light and darkness
Astronomers
In theory, it can't. Astronomers consider time and space to be different sides of the same function - they call it "timespace". As long as time continues, space will continue to expand.
Strategic Defense Initiative.
Astrophysicist, astronomer, astrologer, trekkie to name a few.
Robot
No living being - plants or otherwise - have yet been discovered in outer space; much less living beings that move through outer space!
mga tanga kau mag aral kau ng matino bobo
I think you're looking for the term "aerial photo".
The creatures that are believed to live in outer space are often referred to as extraterrestrial or alien beings. These beings are hypothesized to exist on other planets or celestial bodies beyond Earth.
This happens through site investigations. The course of study the deals with the study of ancient human history and earth remains is call archaeology.