There is a new journal dedicated to Science Fiction from the Museum of Science Fiction
Volume 1 Issue #1 is now available. Here is their Focus and Scope
MOSF Journal of Science Fiction seeks to uphold the spirit of educated inquiry and speculation through the publication of peer-reviewed, academic articles, essays and book reviews exploring the interdisciplinary nature of science fiction. The journal welcomes unsolicited, original submissions from academics around the world about science fiction in all media (literature, film, television, videogames, art, oral history, etc.). Issues are published three times a year and each issue will feature 8 to 12 academic articles.