Kryptonite

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Kryptonite
Kryptonite (DC Comics).jpg
Green Kryptonite as seen in Superman: Secret Origin #1
Publication information
PublisherDC Comics
First appearance
In story information
TypeElement/compound
Element of stories featuring

Kryptonite is a fictional material that appears primarily in Superman stories published by DC Comics. In its best-known form, it is a green, crystalline material originating from Superman's home world of Krypton that emits a unique, poisonous radiation that can weaken and even kill Kryptonians. Kryptonite radiation can emit through any element except lead. Thus, Superman has a special lead suit to protect himself from the radiation. There are other varieties of Kryptonite, such as red and gold Kryptonite, which have different but still generally negative effects. Due to Superman's popularity, Kryptonite has become a byword for an extraordinary exploitable weakness, synonymous with "Achilles' heel". Batman, Lex Luthor, Metallo, and Titano are four notable characters often presented as using Kryptonite — the first carrying the substance as a last-ditch method to stop his ally Superman if he is subject to mind control or otherwise compromised, the next two using the mineral to ward off Superman or incorporating it into weapons to try to kill him, and the fourth being able to project rays of kryptonite radiation from his eyes after being altered by simultaneous exposure to kryptonite and uranium.[1]

Origin[edit]

Superman suffering from green kryptonite poisoning, courtesy of foes Metallo and Titano the Super-Ape,
in Action Comics Annual #10 (March 2007), art by Art Adams and Alex Sinclair

An unpublished 1940 story titled "The K-Metal from Krypton", written by Superman creator Jerry Siegel, featured a prototype of kryptonite. It was a mineral from the planet Krypton that drained Superman of his strength while giving superhuman powers to humans. This story was rejected because in it Superman reveals his identity to Lois Lane.[2]

The mineral known as kryptonite, not to be confused with the real element krypton, was first officially introduced in the radio serial The Adventures of Superman, in the story "The Meteor from Krypton", broadcast in June 1943.[3] An apocryphal story claims that kryptonite was introduced to give Superman's voice actor, Bud Collyer, the possibility to take a vacation at a time when the radio serial was performed live. In an episode where Collyer would not be present to perform, Superman would be incapacitated by kryptonite, and a substitute voice actor would make groaning sounds. This tale was recounted by Julius Schwartz in his memoir.[4] However, the historian Michael J. Hayde disputes this: in "The Meteor From Krypton", Superman is never exposed to kryptonite. If kryptonite allowed Collyer to take vacations, that was a fringe benefit discovered later. More likely, kryptonite was introduced as a plot device for Superman to discover his origin.[5]

In the radio serial, Krypton was located in the same solar system as Earth, in the same orbit, but on the opposite side of the Sun. This provided an easy explanation for how kryptonite found its way to Earth. During the comics' Silver Age, which put Krypton in another solar system light-years away, much of the kryptonite that came to Earth (along with several Kryptonian artifacts) was explained as having come through the same "space warp" that baby Kal-El's rocket traversed.

Kryptonite was incorporated into the comic mythos with Superman #61 (November 1949).[6] Editor Dorothy Woolfolk stated in an interview with Florida Today in August 1993 that she "felt Superman's invulnerability was boring."[7]

The only substance in the universe that kryptonite radiation (from any variety) cannot penetrate is lead.

Transition from Element to Compound[edit]

Long said to be an element in the Golden, Silver, and Bronze Age comics, Kryptonite became a compound after Crisis as revealed in Action Comics Vol 1 #591.

Forms, colors and effects [edit]

Various forms of the fictional material have been created over the years in Superman publications and programs.[8]

Green kryptonite Originally red in color, the material debuted in Superman #61 (Nov. 1949) and did not adopt its characteristic green hue until Action Comics #161 (Aug. 1951). Green kryptonite weakens Superman and other Kryptonians, and can and will kill them with long-term exposure.[9] Kryptonians under green kryptonite's effects experience severe muscular weakness, usually to the point of collapse, and excruciating pain, with both conditions progressively intensifying. They often develop a fever and eventually will lose consciousness before death. The mineral will also gradually turn a Kryptonian's skin and blood green.

Although canonical depictions vary widely, the majority of accounts maintain that, although green kryptonite exposure victims experience severe weakness and pain, exposure in itself does not eradicate the victim's superpowers, except those related to physical strength. Green kryptonite exposure does not compromise the subject's invulnerability to other forms of injury; therefore, it is not a practical strategy for a villain to first expose the victim to green kryptonite, then kill them with a gun or other conventional weapon. However, some enemies have occasionally used weapons with green kryptonite projectile ammunition, which can not only seriously wound a Kryptonian, but also make surgical treatment difficult, with resistance to injury in a yellow sun environment being a major complication. In one such incident, the surgeon was forced to give Superman controlled exposure to the mineral to make proper incisions.[10] Some accounts maintain paralysis is an effect of green kryptonite exposure, although most depictions show victims still capable of limited movement. However, the effects of green kryptonite are not cumulative: a Kryptonian who can be removed from kryptonite exposure in time will fully recover from its effects with no lasting medical repercussions no matter how many instances of surviving exposures.[11] Kryptonian characters have been shown to become immune to the effects of green kryptonite due to either long-term absorption of sunlight[12] or extremely high short-term exposure to the Sun.[13] Post-Crisis sources establish that green kryptonite is also harmful to humans; with sufficient long-term exposure, it can result in cancer, as Lex Luthor discovered, much to his dismay, from a ring with a green kryptonite jewel he wore to ward off Superman. At least one comic, however, also mentioned that kryptonite was being investigated as a possible cancer treatment.[14]

Positive kryptonite Debuted in the last episode of Adventures of Superman episode “All That Glitters” (1958). Professor Pepperwinkle isolates positive kryptonite from green kryptonite. It appears as yellow capsules on screen. It is said to be what gives Superman his powers and is also shown to give humans the abilities of Superman when both Lois Lane and Jimmy Olsen ingest it. This turns out to be a hallucination Jimmy Olsen had after being hit in the head with a sandbag.
Negative kryptonite Debuted in the last episode of Adventures of Superman “All That Glitters” (1958). Professor Pepperwinkle isolates negative kryptonite from green kryptonite. It is said to have the ability to take away Superman's powers. This turns out to be a hallucination Jimmy Olsen had after being hit in the head with a sandbag.
Red kryptonite Debuted in Adventure Comics #252 (Sept. 1958). Originally red kryptonite simply weakened Superman, but to a greater degree than green kryptonite. Red kryptonite was later shown to cause odd behavior or bizarre transformations, albeit temporary and non-fatal. The effects of red kryptonite typically last anywhere from one day (24 hours) to two days (48 hours), although in some accounts the effects may persist up to three days (72 hours) or even several weeks.[15] In Smallville, red kryptonite affects Clark's mental state and the effect wears off as soon as he stops being in close proximity to . Under the personality of "Kal", Clark becomes selfish and uses his powers recklessly, shown drinking and philandering. On Lois & Clark: The New Adventures of Superman, red kryptonite initially makes Superman apathetic, while another piece transfers his superpowers into other humans when used as a laser generator, and a third case causes him to lose fine control of his powers.
Anti-kryptonite/fool's kryptonite Debuted in Action Comics #252 (May 1959). Resembles green kryptonite, and has the same effect as it on humans, but is harmless to Kryptonians. It is also the power source for one version of Ultraman, Superman's evil counterpart from an antimatter universe.[16]
X-kryptonite Debuted in Action Comics #261 (Jan. 1960). Created by Supergirl in an unsuccessful attempt to find an antidote to green kryptonite. Harmless to Kryptonians, the mineral gives normal lifeforms superhuman abilities, as in the case of Supergirl's pet, Streaky the Supercat. Revised in Superman Family #203 (Oct. 1980) to have the same effect as the green variety on Kryptonians.

In Superman & Lois, X-kryptonite (also known as X-k) is only found in Smallville and has a yellowish hue, in addition X-k gives humans one Kryptonian power which varies depending on the person. It also makes people more susceptible to having a Kryptonian consciousness implanted in them. It also weakens people from the Bizzaro World.

Blue kryptonite Debuted in Superman #140 (Oct. 1960). An imperfect variety of kryptonite which affects the imperfect Superman duplicate Bizarro, the members of the Bizarro League and the inhabitants of Htrae, the Bizarro World, in the same way that green kryptonite affects Kryptonians. Kryptonians, however, are unaffected by it. The only substance in the universe that its radiation cannot penetrate is imperfect lead. In the Super Friends franchise, it is also an antidote to the effects of red kryptonite.

In Smallville, blue kryptonite temporarily nullifies the powers of Kryptonians, but also supercharges bodies to dangerous levels like Bizarro that killed him. When a Kryptonian is in close proximity to blue kryptonite even as jewelry, he (or she) has no powers, but once separated by a sufficient distance, the powers return. Blue Kryptonite can also affect humans and plant life putting them in a perfect state of health but could cause irregularities.

White kryptonite Debuted in Adventure Comics #279 (Dec. 1960). Kills all plant life as well as bacteria and viruses.
Red-green kryptonite (first version) Debuted in Action Comics #275 (April 1961). An alloy created by the villain Brainiac, red-green kryptonite caused Superman to mutate, temporarily growing a third eye in the back of his head.
Gold kryptonite Debuted in Adventure Comics #299 (Aug. 1962). Kryptonite affected by atomic radiation, capable of permanently removing a Kryptonian's ability to process yellow sunlight, thus nulifying all of their powers. In post-Crisis stories, however, it only removes a Kryptonian's powers temporarily.[17]
Red-green-blue-gold kryptonite Debuted in Superman #162 (July 1963). An imaginary story in which Superman combines the minerals to power an intelligence-expanding device. An explosion occurs and splits Superman into two beings ("Superman-Red" and "Superman-Blue"), both of whom possess enhanced intelligence.
Silver kryptonite Debuted in Superman's Pal, Jimmy Olsen #70 (July 1963). Revealed by Jimmy Olsen to be a hoax. In post-Crisis stories, silver kryptonite first appeared in Superman/Batman #46 (April 2008), modeled after the version that appeared in the Smallville TV series[citation needed] in season 5 episode 7 "Splinter", where Clark suffers paranoid delusions. Silver kryptonite causes Kryptonians to suffer from altered perceptions, loss of inhibitions and extreme hunger cravings.[citation needed] On the Supergirl TV series, this kryptonite causes Superman to hallucinate his "greatest fear" of an attacking General Zod during the final episode of season 2, "Nevertheless, She Persisted".[citation needed]
Jewel kryptonite Debuted in Action Comics #310 (March 1964). Made from the fragments of Krypton's Jewel Mountains, it amplifies the psychic powers of the criminals imprisoned in the Phantom Zone.
Bizarro-red kryptonite Debuted in Superman's Pal, Jimmy Olsen #80 (Oct. 1964). Affects humans in the same way that red kryptonite affects Kryptonians.
Red-green kryptonite (second version) Debuted in Superboy Comics #121 (June 1965). This variety caused Superboy to lose his superpowers permanently, but the Phantom Zone criminal Vakox unwillingly cured him, thus restoring his superpowers.
Red-gold kryptonite Debuted in Superman #178 (July 1965). Temporarily deprives Kryptonians of their memories.
Magno-kryptonite Debuted in Superman's Pal, Jimmy Olsen #92 (April 1966). Created by the villain Mr. Nero, this variety is magnetically attracted to all substances originally from Krypton.
Red-green-gold kryptonite Debuted in Superman #192 (Jan. 1967). An imaginary story in which the alloy permanently removes Superman's powers and memories of being Superman.
Slow kryptonite Debuted in The Brave and the Bold #175 (June 1981). A modified variety of green kryptonite produced by the supervillain Metallo that affects humans in a manner similar to how green kryptonite affects Kryptonians.
Kryptonite-X Debuted in The Adventures of Superman #511 (April 1994). A one-time fluke, kryptonite-X was created when the Eradicator filtered a harmful barrage of kryptonite discharged by Cyborg Superman at Superman. The result was beneficial for Superman, supercharging him and restoring his ability to process solar radiation.
Clear kryptonite Debuted in Smallville’s “Visage” (Season 2, episode 11) on January 14, 2003. Clear kryptonite is green kryptonite that has been neutralized of all radiation. It is harmless to everyone, including Kryptonians. Both Kal-El's ship and Bizarro have transmuted green kryptonite to clear kryptonite.
Pink kryptonite Debuted in Supergirl (vol. 4) #79 (April 2003). Pink kryptonite turns Kryptonians into homosexuals. This type of kryptonite was mentioned in a single panel in a story that was a satire of the plots of many Silver Age comic book stories that featured some strange new variety of kryptonite. In the Justice League Action short "True Colors", it switches a Kryptonian's physical sex, but not their gender identity.
Black kryptonite Debuted in Smallville's “Crusade” (Season 4, episode 1) on September 22, 2004. In Pre-Flashpoint continuity, it could split a Kryptonian into two separate beings: one good and the other evil (the kryptonite manufactured by the villains of Superman III had just such an effect on Superman). In Dark Nights: Metal – The Batman Who Laughs #1, set on the Dark Multiverse's Earth −22, a Batman corrupted by the Joker creates a modified strand of black kryptonite. He tests it first on Supergirl, causing her to murder her family before dying herself. He then uses it again on Superman and Superboy, who literally tear Lois Lane apart before they kill each other.
Orange kryptonite Debuted in Krypto the Superdog #4 (Feb. 2007). Provides super-abilities to any animal that comes into contact with it for one day (24 hours).
Periwinkle kryptonite Debuted in Superman Family Adventures #9 (March 2013). A non-canonical variety that causes Kryptonians to lose all their inhibitions.
Platinum kryptonite Debuted in "True Strength", a story from Batman Secret Files #001 (Dec. 2018) and Batman (vol. 3) #85 (Feb. 2020). From "an impossible universe inside the Phantom Zone, on an impossible planet". When touched by a normal human, platinum kryptonite changes their cells in an instant, giving them Kryptonian superpowers for life. Used by Batman to restore Gotham Girl's powers. Kong Kenan was also given superpowers from that type of Kryptonite after the death of the New 52 Superman.
Turquoise kryptonite Debuted in Dark Nights: Death Metal #3 (Aug. 2020). A variant of Kryptonite from one of the worlds found in the Dark Multiverse, used by Darkfather (a version of Batman who attained Darkseid's powers) to torture Superman. It appears to have a similar effect on Kryptonians as green kryptonite.
Pilbeam kryptonite Debuted in "True Strength", a piece of unrecognisable kryptonite was discovered on the Phantom Zone by ally to Superman Joseph Pilbeam. The effects of this kryptonite are similar to Platinum Kryptonite, though for Kryptonians the effects are the opposite.
Superman and Jimmy Olsen discuss the mineral kryptonite, with the jewel variant making its debut, in Action Comics #310 (March 1964),
art by Curt Swan

In other media[edit]

Television[edit]

Live action[edit]

  • The Adventures of Superman (1952–1958) featured kryptonite in the episodes "Panic in the Sky", "The Defeat of Superman", "Superman Week", "The Deadly Rock", "The Magic Secret", "The Gentle Monster" and "All That Glitters".
  • Superboy (1988–1992) featured green kryptonite in the episodes: "Kryptonite Kills" and "Metallo", "Bride of Bizarro", "Kryptonite Kid", and "Obituary for a Super-Hero". The red variety was featured in the episode "Super Menace". A Bizarro white variant was featured in the episode "The Battle with Bizarro", which heals the title character.
  • Lois & Clark: The New Adventures of Superman (1993–1997) featured green kryptonite in the episodes "The Green, Green Glow of Home", "Barbarians at the Planet", "The House of Luthor", "Metallo", "Top Copy", "Tempus Fugitive" and "Battleground Earth". The red variety was featured in the episodes "Individual Responsibility", "Ultrawoman" and "Lethal Weapon".
  • Smallville (2001–2011) featured kryptonite on a regular basis. A large quantity of the green variety descends to Earth in a meteor shower, arriving in the town of Smallville, Kansas with the spaceship containing the infant Kal-El. The material is colloquially referred to by Smallville residents as "meteor rock", but is eventually called "kryptonite" by Clark Kent once he discovers his origins in season two episode "Visitor" (in real life, the area near Brenham, Kansas is known as the site of a major meteorite strike between 10,000 and 20,000 years ago).[18] Aside from being harmful to Clark Kent, the mineral produces bizarre changes in flora and fauna. It also occasionally bestows metahuman abilities on humans depending on the circumstances of their exposure to it, such as a girl treated for a rare bone disease acquiring shapeshifting powers. These people are commonly known by the inhabitants of Smallville as "Meteor Freaks". The green variety of the mineral appears in several episodes every season, although other varieties appear, including: red in "Red" (2002), "Exodus", "Exile", "Phoenix" (2003), "Unsafe" (2005), "Crimson" (2007) and "Upgrade" (2010); black, formed when superheating green kryptonite in "Crusade" (2004) and "Doomsday" (2009); silver in "Splinter" made by Milton Fine (2005); blue in "Blue" (2007), "Persona" (2008), "Kandor" (2009), "Salvation" (2010) and "Harvest" (2011); as a gem in "Persuasion" (2010) and gold (introduced in Earth Two) in "Luthor", "Prophecy" and "Finale" (2011). Smallville was the first appearance of a black kryptonite that would split a person into their good and evil sides, before later being brought into the comic book canon in Supergirl (vol. 5) #2 (Oct. 2005).
  • Kryptonite has made several appearances in the Arrowverse:
    • Supergirl (2015–2021) features green kryptonite in the episodes "Pilot", "Stronger Together", "Hostile Takeover", "For the Girl Who Has Everything", "Distant Sun" and "Immortal Kombat". The DEO manages to synthesize and create blue kryptonite which is featured in the episode "Bizarro". Red kryptonite is featured in the episode "Falling" as a failed attempt to recreate green kryptonite by Maxwell Lord. Silver kryptonite is featured in the episode "Nevertheless, She Persisted". In season 3, the black kryptonite is pivotal to its arc, first appearing in the episode "The Fanatical", in which it is being referred to as Harun-El by Kryptonians. The Worldkiller Coven from Krypton, headed by dark priestess Selena, schemes to use the Harun-El to terraform Earth into a Krypton-like planet for Kryptonians to inhabit. The protagonists uses the Harun-El to split the Worldkiller Coven's servant, Reign, from her human alter-ego Samantha Arias. By the end of the season finale, it is revealed that Supergirl's being is also divided after her exposure to it during her final battle with Reign. In season 4, Lena Luthor develops a serum derived from Harun-El, and Lex Luthor, Agent Liberty and James Olsen develop metahuman abilities after being injected with it such as enhanced speed, durability, strength, and a healing factor.
    • Green kryptonite appears briefly in the crossover event "Crisis on Earth-X". During a confrontation with Overgirl, Supergirl's Earth-X counterpart, Oliver Queen fires an arrow at her containing a kryptonite arrowhead, impaling Overgirl's shoulder. An astonished Supergirl asks Oliver why he has a kryptonite arrow, to which Oliver replies: "In case an evil you ever showed up!"
    • Kryptonite also appears in the "Crisis on Infinite Earths" crossover event: In Part Two, the Bruce Wayne of Earth-99 keeps kryptonite in the Batcave and had used it to kill his Earth's Superman. He uses it on Supergirl, but is killed by Earth-1's Kate Kane before he can kill her. Kate then collects the kryptonite in his possession. In Part Three, Batwoman intended to use the kryptonite on Supergirl to stop a dangerous plan of hers, but instead reveals it to her as an act of faith. Supergirl tells her to keep it, saying that she "[has] the courage" that Kate will never have to use it.
    • In the Batwoman episode "A Secret Kept From All the Rest", Lucius Fox states in his journal that green kryptonite is the only thing capable of penetrating the Batsuit. In the season 1 finale episode "O, Mouse!", as Alice tries to locate kryptonite, Luke finds it and manages to destroy it. But Kate reveals to both of them that she has another kryptonite rock given to her from Crisis. The bullet was later used by Hush on Ryan Wilder when she became Batwoman. This caused her pain until she was treated when the plant she owned turned out to be a Desert Rose from Coryana.
    • In Superman & Lois, Superman is targeted by "The Stranger", who uses green kryptonite against him in their initial fight. Meanwhile, Morgan Edge unearths a large batch of X-kryptonite from a Smallville mine, which has made the local population susceptible for the Eradicator, a device which Edge uses to implant Kryptonian consciousnesses into humans. Eventually it is revealed that the Stranger is John Henry Irons from an alternate Earth where Superman led a superpowered army to attack Metropolis as he makes it his mission to defeat the Earth-Prime Superman and thwart Edge's experiments before the same thing can happen again. In season 2, some people have been trafficking X-Kryptonite until it was stopped by Lois Lane, Sam Lane, and Jordan Kent. Natalie Irons even used some of the X-Kryptonite she obtained to make a lacquer to coat her version of her dad's exo-suit.

Animation[edit]

  • The Brady Kids (1972–1973) featured green kryptonite in the episode "Cindy's Super Friend" which shows Clark Kent attempting to become Superman in the Kids' clubhouse, only to be incapacitated by a piece of green kryptonite used as part of a rock collection.
  • Super Friends (1973–1986) features kryptonite in the episodes "Super Friends: Rest in Peace" ("Krypton steel"); "Darkseid's Golden Trap" (gold); "Terror From the Phantom Zone" (blue, green, and red); "Return of the Phantoms" (green); "Rokan: Enemy from Space" (green); "Bazarowurld" (red and blue); "Revenge of Bizarro" (red and blue); Will the World Collide?" (green); "Uncle Mxyzptlk" (red); "The Death of Superman" (green); "Batman: Dead or Alive" (green).
  • Superman (1988) features a kryptonite ring worn by Lex Luthor. On the episode "The Hunter", Superman's enemy transforms his body into kryptonite.
  • Superman: The Animated Series (1996–2000) offers an explanation of the effect of the material on Superman. This series and The New Batman Adventures (1997–1999) showcase a three-part crossover story arc called "World's Finest" that demonstrates the effect of kryptonite poisoning on humans.
    • Justice League (2001–2004) explores the same theme where Lex Luthor develops cancer from his long term exposure to a piece of kryptonite he kept with him without taking precautions to contain it.
  • In Batman Beyond (1999–2001) the two-part episode "The Call" reveals that kryptonite has been kept safe in the distant future as a deterrent against Superman due to the hero's past as a rogue agent under Darkseid's mind manipulation.
  • Krypto the Superdog (2005–2006) features green, red and a purple-spotted variation.
  • Legion of Super Heroes (2006–2008) features green kryptonite.
  • Young Justice (2010–present) features green kryptonite in the episodes "Auld Acquaintance", "Involuntary", "Encounter Upon the Razor's Edge!", "Forbidden Secrets of Civilizations Past!", "Zenith and Abyss", "Over and Out" and "Death and Rebirth".
  • In Batman: The Brave and the Bold episode "Battle of the Superheroes!" (2011), Superman is infected with a red kryptonite necklace secretly given to Lois Lane by Lex Luthor, which causes him to become evil. Now Batman must work with Krypto the Superdog to hold off Superman until the kryptonite's effects wear off.
  • In Lego DC Super Hero Girls (2016-2018), Lena Luthor developed a series of kryptonites with one of six different colors each, which effect everyone that comes near them by changing their emotions, such as anger, sadness, fear, distrust and forgetfulness, while the green ones only act as normal kryptonite that only affects Supergirl. She is usually seen assisting the Female Furies and Eclipso, though the latter of which Lena always hinders her plans in the end, hindering her own plans in the process.
  • Kryptonite appears in the Justice League Action short episode "True Colors" (2017), used by Metallo against Superman. Firestorm arrives and attempts to neutralize the kryptonite's effects by changing it into lead, but is initially unsuccessful and changes it into various other colors (red, gold, black, and pink) before finally succeeding.
  • In DC Super Hero Girls (2019-present), green kryptonite has been used by Catwoman to weaken Supergirl and by Lex Luthor to trap both Superman and Supergirl in capsules, while Ra's al Ghul once used red kryptonite to mind control Supergirl into destroying a boy band concert.

Films[edit]

  • In Superman (1978) Lex Luthor (Gene Hackman) deduces that a meteorite found in Addis Ababa is actually a radioactive piece of the exploded planet Krypton. Luthor uses the mineral to weaken Superman (Christopher Reeve), who is saved by Luthor's lover Eve Teschmacher (Valerie Perrine).
  • In Superman III (1983) billionaire Ross Webster (Robert Vaughn) orders the creation of synthetic green kryptonite. Computer programmer Gus Gorman (Richard Pryor) uses tar to compensate for an unknown component of kryptonite, causing the newly created mineral to eventually turn Superman evil and split the hero into two beings (making its effects more in line with red and black kryptonite). Gorman's "supercomputer" later fights Superman and uses a kryptonite ray.
  • In Superman Returns (2006) Lex Luthor (Kevin Spacey) steals the Addis Ababa L9 Pallasite meteorite and uses kryptonite to create a new Kryptonian landmass and a shard for use against Superman. The film describes kryptonite's formula as "sodium lithium boron silicate hydroxide with fluorine". A year after the film was released, a substance with a similar formula was discovered, jadarite, a coincidence which led to media attention.[19][20][21][22] The new mineral, unlike the fictional material in the movie, does not contain fluorine and does not have a green glow, an effect normally associated with nuclear radiation in both real life and popular culture.[19]
  • In Justice League: The New Frontier (2008), Batman mentions he keeps some kryptonite in case he needs to fight Superman.
  • In Justice League: Crisis on Two Earths (2010) an alternate universe version of Lex Luthor uses blue kryptonite against the villain Ultraman.
  • In Justice League: Doom (2012), the villain Metallo wounds Superman with a kryptonite bullet, but he is saved by the JLA.
  • In Batman v Superman: Dawn of Justice (2016), green kryptonite is discovered by men working for Lex Luthor (Jesse Eisenberg) at the bottom of the Indian Ocean (after Superman's battle with the World Engine in Man of Steel) and experimented with by Luthor, who learns of its harmful effect on Kryptonians when the corpse of General Zod is exposed to it. The kryptonite is then stolen from Luthor by Batman (Ben Affleck), who uses it to create kryptonite gas pellets and a kryptonite-tipped spear, both of which he later uses in battle with Superman (Henry Cavill). Doomsday is also shown to be weakened by kryptonite, allowing Superman to use the spear to kill him in the film's climax.[23]
  • In DC League of Super-Pets, Lex Luthor brings an orange kryptonite meteor to Earth, hoping to use it to give himself superpowers. He fails, but a shard of the meteor lands in an Animal shelter, granting powers to the pets there. One of these pets, a former Lexcorp Guinea pig named Lulu, decides to use her newfound powers to conquer the world. Lulu also uses pieces of green kryptonite against Superman and Krypto.

Video games[edit]

  • In Superman: Atari 2600 (1978) Luthor has created kryptonite satellites and scattered them around Metropolis that take away Superman's ability to fly when touched. Superman must then walk around Metropolis until he finds and meets Lois Lane to regain his powers.
  • In the 1988 Kemco Superman game for the Nintendo Entertainment System, defeating random enemies may cause red or green Kryptonite to appear, which must be avoided or else it will damage the player's health. A blue crystal restores the player's health, explained in the manual as Kryptonian power crystals akin to the 1978 film.
  • Superman 64 (1999) it appears as kryptonite fog, coined as an excuse for the game's poor draw distance.
  • In the crossover fighting game Mortal Kombat vs DC Universe (2008) kryptonite weakens Superman when exposed, while it makes his Mortal Kombat universe counterpart, the thunder god Raiden, stronger.
  • In Lego Batman 2: DC Super Heroes (2012) kryptonite is used to power Lex Luthor's weapon, the "Deconstructor".
  • Scribblenauts Unmasked: A DC Comics Adventure (2013) showcases the material in different forms.
  • Kryptonite is one of the foundation elements in Lego Dimensions.
  • Injustice: Gods Among Us (2013) features a kryptonite laser designed as a fail-safe against Superman should he turn against humanity.
  • Gold and green kryptonite appear in the story mode of Injustice 2.

Serials[edit]

Columbia Pictures produced two 15-part motion picture serials that used kryptonite as a plot device: Superman (1948) and Atom Man vs. Superman (1950).

Music[edit]

Songs:

See also[edit]

References[edit]

  1. ^ Horton, Andrew; McDougal, Stuart Y.; Braudy, Leo (1998). Play it Again, Sam: Retakes on Remakes. Berkeley, California: University of California Press. p. 287. ISBN 0520205936.
  2. ^ Jones, Gerard (2004). Men Of Tomorrow: Geeks, Gangsters, and the Birth of the Comic Book. New York: Basic Books. pp. 181–183. ISBN 0465036562.
  3. ^ Hayde, Michael J. (2009). Flights of Fantasy: The Unauthorized but True Story of Radio & TV's Adventures of Superman. BearManor Media. ISBN 9781593933449.
    "Only one arc in 1943 managed to transcend its era: "The Meteor from Krypton." Debuting on June 3, it marked the debut of kryptonite..."
  4. ^ Schwartz, Julius (2000). Man of Two Worlds: My Life in Science Fiction and Comics. HarperEntertainment. ISBN 0-380-81051-4.
    pg 132-133
  5. ^ Hayde, Michael J. (2009). Flights of Fantasy: The Unauthorized but True Story of Radio & TV's Adventures of Superman. BearManor Media. ISBN 9781593933449.
    "Since Superman’s life isn’t threatened — the meteorite never leaves the doctor’s custody — it’s likely that Lowther’s primary intent was to create a means for Superman to discover his own origin."
  6. ^ Bill Finger (w), Al Pastino (p). "Superman's Return to Krypton!" Superman #61 (November 1949), DC Comics
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