what was the first magazine in the aforementioned genre?
"Amazing Stories"
Science fiction magazine
The first science fiction magazine, "Amazing Stories", was published in a format known as bedsheet, roughly the size of Life but with a square spine.
what is cosmic stories and stirring science stories? Two American pulp science fiction magazines
wiki:20976763
Science fiction magazine [SEP] The first science fiction magazines
The first science fiction magazine, "Amazing Stories", was published in a format known as bedsheet, roughly the size of Life but with a square spine. Later, most magazines changed to the pulp magazine format, roughly the size of comic books or "National Geographic" but again with a square spine. Now, most magazines are published in digest format, roughly the size of "Reader's Digest", although a few are in the standard roughly 8.5" x 11" size, and often have stapled spines, rather than glued square spines. Science fiction magazines in this format often feature non-fiction media coverage in addition to the fiction.