General Knowledge - Basic General Knowledge - Discussion

Exobiology or astrobiology, search for extraterrestrial life within the solar system and throughout the universe. Philosophical speculation that there might be other worlds similar to ours dates back to the ancient Chinese and Greeks. However, the achievements of space exploration and molecular biology have turned speculation into experimentation.

It's also called astrobiology.

we didn't understand the explanation please give clearly.

Study of life in outer space s known as exobiology which deals with the existence of the conditions ad factor for the survival fittest of living organism in outer space.