John W. Campbell’s Who Goes There appeared in the August 1938 issue of Astounding Science Fiction. It is generally considered to be one of the most influential stories from the 1930s, and an early example of Science Fiction Horror.
John W. Campbell:
https://en.wikipedia.org/wiki/John_W._Campbell
Astounding Science Fiction – August 1938:
https://archive.org/details/sim_astounding-science-fiction_1938-08_21_6/