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.
Primary repression is the process of determining what is self, what is other; what is good, and what is bad. At the end of this phase, the child can now distinguish between desires, fears, self, and others. Secondary repression begins once the child realizes that acting on some desires may bring anxiety.