Who Goes There?

Blurb

Who Goes There? is a science fiction novella by John W. Campbell, Jr., written under the pen name Don A. Stuart. It was first published in the August 1938 Astounding Science-Fiction.
In 1973 the story was voted by the Science Fiction Writers of America as one of the finest science fiction novellas ever written. It was published with the other top vote-getters in The Science Fiction Hall of Fame, Volume Two.
The novella has been adapted four times as a motion picture: the first in 1951 as The Thing from Another World; the second in 1972 as Horror Express; the third in 1982 as The Thing directed by John Carpenter; and most recently as a prequel to the Carpenter version, also titled The Thing, released in 2011.