Exobiology or astrobiology, this science is also concerned with adapting life support devices ( suits, helmets, etc) for space-faring astronauts so there is a practical side.Don"t go looking for tech manuals on this at your local library!
The study of life outside Earth is called astrobiology. The possibility of a transfer of life between different planets (as bacteria or similar) is called the panspermia hypothesis.
An Astrobiologist
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Astrobiology
Xenobiology is the speculative biology of extraterrestrial life forms.