Wiktionary
science fact
n. reality, ''especially'' scientific and technological reality, as contrasted with what is depicted in science fiction.
Usage examples of "science fact".
My interest in science was maintained through all those school years by reading books and magazines on science fact and fiction.
I was asked to take his place as editor of Analog Science Fiction-Science Fact magazine, at that time (1971) the top magazine in the SF field.
In his latest science fact collection, he joins the ranks of Asimov with his dissection of the science beneath the skin of science fiction.