science fiction, postapocalyptic fiction, uses the aftermath of nuclear or biological warfare as its setting. The Death Star is the Star Wars equivalent to a weapon of mass destruction, and as such, might be the most well-known weapon of mass destruction in science fiction. Powered armor and fighting suits The idea of powered armor has appeared in a wide variety of fiction, beginning with E. E. Smith's Lensman series in 1937. One of the most famous early versions was Heinlein's 1959 novel Starship Troopers, which can be seen as spawning the entire subgenre concept of military "powered armor", which would be further developed in Joe Haldeman's The Forever War. The Marvel character Iron Man is another noteworthy example. Other examples include the power armor used by the Space Marines and other characters from Games Workshop's Warhammer 40k franchise, and the power armor used by the Brotherhood of Steel in the Fallout franchise, and the MJOLNIR Armor worn by protagonist Master Chief in the Halo series of video games. The anime series Gundam centers around giant piloted suits of armor called Mobile Suits. Powered armor suits appear numerous times in the later Command and Conquer games. The Terrans, a future version of humanity in the StarCraft series, are often seen in powered combat suits and equipped with rifles that fire bullets similar to a tip of a pencil. Others are equipped with the a sort of cybernetic implant. Some science-fiction stories contain accounts of hand-to-hand combat in zero gravity, and the idea that old-fashioned edged weapons—daggers, saws, mechanical cutters—may still have the advantage in close-up situations where projectile weapons are impractical. Cyberwarfare and cyberweapons The idea of cyberwarfare, in which wars are fought within the structures of communication systems and computers using software and information as weapons, was first explored by science fiction. John Brunner's 1975 novel The Shockwave Rider is notable for coining the word "worm" to describe a computer program that propagates itself through a computer network, used as a weapon in the novel. William Gibson's Neuromancer coined the phrase cyberspace, a virtual battleground in which battles are fought using software weapons and counterweapons. The Star Trek episode "A Taste of Armageddon" is another notable example. Certain Dale Brown novels place cyberweapons in different roles. The first is the "netrusion" technology used by the U.S. Air Force. It sends corrupt data to oncoming missiles to shut them down, as