Information: - Martin Greenberg (28 June 1918-20 October 2013) Is an American book publisher and editor of science fiction anthologies. - Startling Stories was an American pulp science fiction magazine, published from 1939 to 1955 by publisher Ned Pines' Standard Magazines. It was initially edited by Mort Weisinger, who was also the editor of "Thrilling Wonder Stories", Standard's other science fiction title. "Startling" ran a lead novel in every issue; the first was "The Black Flame" by Stanley G. Weinbaum. When Standard Magazines acquired "Thrilling Wonder" in 1936, it also gained the rights to stories published in that magazine's predecessor, "Wonder Stories", and selections from this early material were reprinted in "Startling" as "Hall of Fame" stories. Under Weisinger the magazine focused on younger readers and, when Weisinger was replaced by Oscar J. Friend in 1941, the magazine became even more juvenile in focus, with cliched cover art and letters answered by a "Sergeant Saturn". Friend was replaced by Sam Merwin, Jr. in 1945, and Merwin was able to improve the quality of the fiction substantially, publishing Arthur C. Clarke's "Against the Fall of Night", and several other well-received stories. - Mortimer "Mort" Weisinger (April 25, 1915 May 7, 1978) was an American magazine and comic book editor best known for editing DC Comics' "Superman" during the mid-1950s to 1960s, in the Silver Age of comic books. He also co-created such features as Aquaman, Green Arrow, and Johnny Quick, served as story editor for the "Adventures of Superman" television series, and compiled the often-revised paperback "1001 Valuable Things You Can Get Free". - Ned L. Pines (December 12, 1905 May 14, 1990) was an American publisher of pulp magazines, comic books, and paperback books, active from at least 1928 to 1971. His Standard Comics imprint was the parent company of the comic-book lines Nedor Publishing and Better Publications, the most prominent character of which was the superhero the Black Terror. Pines also established the paperback book publisher Popular Library, which eventually merged with Fawcett Publications. - Against the Fall of Night is a science fiction novel by British writer ArthurC. Clarke. Originally appearing as a novella in the November, 1948 issue of the magazine "Startling Stories", it was revised and expanded in 1951 and published in book form in 1953 by Gnome Press. It was later expanded and revised again and published in 1956 as "The City and the Stars". A later edition includes another of Clarke's early works and is titled "The Lion of Comarre and Against the Fall of Night". In 1990, with Clarke's approval, Gregory Benford wrote a sequel titled "Beyond the Fall of Night" which continues the story arc of the 1953 novel. It is generally printed with the original novel as a single volume. - Planet Stories was an American pulp science fiction magazine, published by Fiction House between 1939 and 1955. It featured interplanetary adventures, both in space and on other planets, and was initially focused on a young readership. Malcolm Reiss was editor or editor-in-chief for all of its 71 issues. "Planet Stories" was launched at the same time as "Planet Comics", the success of which probably helped to fund the early issues of "Planet Stories". "Planet" did not pay well enough to regularly attract the leading science fiction writers of the day, but did manage to obtain work from well-known names on occasion, including Isaac Asimov and Clifford Simak. In 1952 "Planet" published Philip K. Dick's first sale, and went on to print four more of his stories over the next three years. - Science fiction (often shortened to SF, sci-fi or scifi) is a genre of speculative fiction, typically dealing with imaginative concepts such as futuristic science and technology, space travel, time travel, faster than light travel, parallel universes, and extraterrestrial life. Science fiction often explores the potential consequences of scientific and other innovations, and has been called a "literature of ideas." It usually avoids the supernatural, and unlike the related genre of fantasy, historically science fiction stories were intended to have a grounding in science-based fact or theory at the time the story was created, but this connection is now limited to hard science fiction. - Speculative fiction is a broad umbrella genre denoting any narrative fiction with supernatural or futuristic elements; this encompasses the genres of science fiction, fantasy, horror, alternative history, magic realism, and superhero fiction, as well as combinations of the previous genres. It typically strays strongly from reality and so may feature fictional types of beings like mythical creatures and supernatural entities, technologies that do not exist in real life like time machines and interstellar spaceships, or magical or otherwise scientifically inexplicable elements. The term's popularity is sometimes attributed to Robert Heinlein, who referenced it in 1947 in an editorial essay, although there are prior mentions of speculative fiction, or its variant "speculative literature". - Wonder Stories was an early American science fiction magazine which was published under several titles from 1929 to 1955. It was founded by Hugo Gernsback in 1929 after he had lost control of his first science fiction magazine, "Amazing Stories", when his media company Experimenter Publishing went bankrupt. Within a few months of the bankruptcy, Gernsback launched three new magazines: "Air Wonder Stories", "Science Wonder Stories" and "Science Wonder Quarterly". - Isaac Asimov (born Isaak Ozimov; January 2, 1920 April 6, 1992) was an American writer and professor of biochemistry at Boston University. He was known for his works of science fiction and popular science. Asimov was a prolific writer, and wrote or edited more than 500 books and an estimated 90,000 letters and postcards. His books have been published in 9 of the 10 major categories of the Dewey Decimal Classification. - Time travel is the concept of movement (such as by a human) between certain points in time, analogous to movement between different points in space, typically using a hypothetical device known as a time machine, in the form of a vehicle or of a portal connecting distant points in time. Time travel is a recognized concept in philosophy and fiction, but traveling to an arbitrary point in time has a very limited support in theoretical physics, and usually only in conjunction with quantum mechanics or wormholes, also known as Einstein-Rosen bridges. In a more narrow sense, one-way time travel into the future via time dilation is a well-understood phenomenon within the frameworks of special relativity and general relativity, but advancing a large amount of time is not feasible with current technology. The concept was touched upon in various earlier works of fiction, but was popularized by H. G. Wells' 1895 novel "The Time Machine", which moved the concept of time travel into the public imagination, and it remains a popular subject in science fiction. - Fantasy is a fiction genre set in an imaginary universe, often but not always without any locations, events, or people from the real world. Most fantasy uses magic or other supernatural elements as a main plot element, theme, or setting. Magic and magical creatures are common in many of these imaginary worlds. Fantasy is generally distinguished from the genres of science fiction and horror by the expectation that it steers clear of scientific and macabre themes, respectively, though there is a great deal of overlap between the three, all of which are subgenres of speculative fiction. - Travelers of Space is a 1951 anthology of science fiction short stories edited by Martin Greenberg . The stories originally appeared in the magazines ' Planet Stories , Astounding , Thrilling Wonder Stories and Startling Stories . - The supernatural (Medieval Latin: "superntrlis": "supra" "above" + "naturalis" "natural", first used: 15201530 AD) includes all that cannot be explained by science or the laws of nature, including things characteristic of or relating to ghosts, gods, or other supernatural beings, or to things beyond nature. Given the information, choose the subject and object entities that have the relation of 'publisher'.
The answer to this question is:
travelers of space , gnome press