<P> Its modern use in science fiction literature contrasts "Earth" (the planet) with outer space or hypothetical other planets with sapient life . The term was often used in 1950s science fiction film and novels by aliens to express a disdainful or patronizing tone towards creatures from Earth . The meaning "creature from planet Earth" in the context of space travel may be extended to non-human species, as in "Russia fetes dog Laika, first earthling in space". </P> <P> The literary effect aimed for is a distancing effect, inviting the readers to contemplate their own species as it might be seen from an external point of view . There is also a belittling effect, in parallel with the use of the - ling suffix in such diminutives as "duckling" and "gosling". Especially in 1950s science fiction, use of the term is a conscious reversal of common assumptions of anthropocentrism or human exceptionalism, and may be an example of an exonym . </P> <P> In some science fiction media (such as the Star Trek franchise and the 2014 movie Guardians of the Galaxy) the term "Terran" is used as a term for humans, stemming from "terra", the Latin word for Earth . In the original run of the BBC series Doctor Who, the phrase "tellurian" is used . </P>

What is terran in guardians of the galaxy
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