It is also called alien life, or, if it is a sentient and/or relatively complex individual, an extraterrestrial or alien (or, to avoid confusion with the legal sense of alien , a  space alien ).lthough many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists. The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context.
repression - (psychiatry) the classical defense mechanism that protects you from impulses or ideas that would cause anxiety by preventing them from becoming conscious. psychiatry, psychological medicine, psychopathology-the branch of medicine dealing with the diagnosis and treatment of mental disorders.
Repression is perhaps the most significant of defense mechanisms in that repressed feelings and impulses can lead to the use of many other mechanisms. According to Sigmund Freudâs psychodynamic theory, the impulsive desires of the psycheâs id are prevented by being fulfilled by the ego, which observes the Reality Principle - that our actions are restricted by our environment, including social etiquette.