Space warfare in science fiction

Usually, lasers are used rather than bullets. Willy Ley claimed in 1939 that bullets would be a more effective weapon in a real space battle.[3]

Destruction of planets and stars has been a frequently used aspect of interstellar warfare since the Lensman series.[4] It has been calculated that a force on the order of 10³² joules of energy, or roughly the total output of the sun in a week, would be required to overcome the gravity that holds together an Earth-sized planet.[5][6] The destruction of Alderaan in Star Wars: Episode IV – A New Hope is estimated to require 1.0 × 10³⁸ joules of energy, millions of times more than would be necessary to break the planet apart at a slower rate.[7]

Fictional space warfare tends to borrow elements from naval warfare, often calling space forces as space navies or simply navies. David Weber's Honorverse series of novels portrays several of such space navies such as the Royal Manticoran Navy, which imitate themes from Napoleonic-era naval warfare.[8] [9] [10] The Federation Starfleet (Star Trek), Imperial Navy (Star Wars), Systems Alliance Navy (Mass Effect), UNSC ("Halo") and Earthforce (Babylon 5) also use a naval-style rank-structure and hierarchy. The former is based on the United States Navy and the Royal Navy.[11] The United Nations Space Command in Halo fully echoes all ranks of the United States Armed Forces, even the pay-grade system. Naval ship-classes such as frigate or destroyer sometimes serve as marker to show how the craft are assembled and their designed purpose.

Some fictional universes have different implementations. The Colonial Fleet in Battlestar Galactica uses a mixture of army and navy ranks, and the Stargate universe has military spacecraft under the control of modern air forces, and uses air-force ranks. In the Halo universe, many of the ranks of the current-day United States Armed Forces are used in lieu of fictional ranks. In the Andromeda universe, officers of Systems Commonwealth ships follow naval ranking, but Lancers (soldiers analogous to Marines) use army ranks.

The modern form of space warfare in science fiction, in which mobile spaceships battle both planets and one another with destructive superweapons, appeared with the advent of space opera. Garrett P. Serviss' 1898 newspaper serial "Edison's Conquest of Mars" was inspired by Wells and intended as a sequel to "Fighters from Mars," an un-authorized and heavily altered Edisonade version of The War of the Worlds[18] in which the human race, led by Thomas Edison, pursues the invading Martians back to their home planet. David Pringle considers Serviss' story to be the very first space opera, although the work most widely regarded as the first space opera is E. E. "Doc" Smith's The Skylark of Space. It and its three successor novels exemplify the present form of space warfare in science fiction, as giant spaceships employ great ray guns that send bolts of energy across space to shatter planets in a war between humans and alien species.[19][20]

David Weber's Honorverse novels present a view of space warfare that simply transplants the naval warfare of Horatio Nelson and Horatio Hornblower into space. The space navy battle tactics in the Honorverse are much like those of Nelson, with the simple addition of a third dimension.[21]

Several subsets of military science fiction overlap with space opera, concentrating on large-scale space battles with futuristic weapons. At one extreme, the genre is used to speculate about future wars involving space travel, or the effects of such a war on humans; at the other, it consists of the use of military fiction plots with some superficial science-fiction trappings. The term "military space opera" is occasionally used to denote this subgenre, as used for example by critic Sylvia Kelso when describing Lois McMaster Bujold's Vorkosigan Saga.[22] Other examples of military space opera are the Battlestar Galactica franchise and Robert A. Heinlein's 1959 novel Starship Troopers. The key distinction of military science fiction from space opera is that the principal characters in a space opera are not military personnel, but civilians or paramilitary. Military science fiction also does not necessarily always include an outer space or multi-planetary setting like space opera.[23]

Westerns influenced early science-fiction pulp magazines. Writers would submit stories in both genres,[24] and science-fiction magazines sometimes mimicked Western cover art to showcase parallels.[25] In the 1930s, C. L. Moore created one of the first space Western heroes, Northwest Smith.[25] Buck Rogers and Flash Gordon were also early influences.[26] After superhero comics declined in popularity in 1940s United States, Western comics and horror comics replaced them. When horror comics became untenable with the Comics Code Authority in the mid-1950s, science-fiction themes and space Westerns grew more popular.[25]^: 10 By the mid-1960s, classic Western films fell out of favor and Revisionist Westerns supplanted them. Science-fiction series such as Lost in Space[27] and Star Trek presented a new frontier to be explored, and films like Westworld rejuvenated Westerns by updating them with science-fiction themes. Peter Hyams, director of Outland, said that studio heads in the 1980s were unwilling to finance a Western, so he made a space Western instead.[28] Space operas such as the Star Wars film series also took strong cues from Westerns; Boba Fett, Han Solo and the Mos Eisley cantina, in particular, were based on Western themes. These science fiction-films and television series offered the themes and morals that Westerns previously did.[29]