Kryptonians

"Why am I so different from them?"
"Earth's sun is younger and brighter than Krypton's was. Your cells have drunk in its radiation, strengthening your muscles, your skin, your senses. Earth's gravity is weaker, yet its atmosphere is more nourishing. You've grown stronger here than I ever could have imagined. The only way to know how strong, is to keep testing your limits."

―Kal-El and Jor-El^[src]

Kryptonians are an endangered technologically advanced species, native to the planet Krypton. The species was rendered critically endangered after almost all Kryptonians died when their main civilization center on Krypton exploded due to the instability of the planet's radioactive core.

They are morphologically and anatomically nigh-identical to humans, except for the fact that they gain incredible abilities when exposed to the radiation of a yellow star; their cells can absorb and metabolize this particular energy and harness it to perform extraordinary feats.

History[]

Prehistory[]

To be added

Kryptonian Era of Expansion[]

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Fall of Kandor[]

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Destruction of Krypton[]

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Physiology[]

Visually, Kryptonians are indistinguishable from humans, but with longer lifespans. They evolved and adapted to survive in an atmosphere much harsher and gravity much stronger than Earth's. On their native planet, Kryptonians' natural abilities were the same as humans as Krypton revolved around the red star Rao. However, when on planets like Earth which orbits a yellow star, Kryptonians utilize solar energy on the cellular level to achieve vast superhuman powers that make them appear godlike to humans.

Solar energy absorption: Kryptonians' cells can absorb yellow solar energy, and this in turn, fuels all of their powers and abilities. Their cells also store solar energy as well, allowing them to retain their powers under roofed structures or even at night, although they eventually need a yellow sun to recharge their powers. Kryptonians can also absorb solar energies from stars of other spectral classes. Direct exposure to sunlight can allow a Kryptonian to heal and recover at an accelerated rate on a cellular level from seemingly any of their weaknesses, giving them powerful healing and regenerative capabilities.
- Superhuman strength: Kryptonians possesses tremendous superhuman strength, allowing them to carry more than a million tons and create shockwaves with their strikes. They are vastly stronger than humans, metahumans, Amazons, and Atlanteans.
- Flight: Kryptonians have displayed the ability to control their own immediate gravitational field to such a degree that allows them to fly at supersonic speeds in any direction.
- Superhuman speed: Kryptonians can run and fly at speeds faster than military aircraft. They can move, think and react fast enough to almost match speedsters such as the Flash, who can move faster than humans can even perceive. Superman generally uses his super speed while flying.
- Nigh-invulnerability: Kryptonians' bodies are nearly invulnerable, with missiles, explosions and bullets being unable to so much as break their skin. They can also survive unharmed in environments of intense temperatures, exposure to harmful chemicals or even the vacuum of space. However, beings who are more powerful can break though their extremely advanced durability. However, even upon death, their cells are incapable of decay, making their bodies unable to decompose.
- Superhuman stamina: Under a yellow sun, Kryptonians have vastly increased stamina, giving them the ability to perform superhuman feats for extended periods of time and rarely having to sleep.
- Regenerative healing factor: They are capable of recovering from non-fatal wounds at an accelerated rate. This is further enhanced when under direct sunlight, whereby they heal all non-fatal wounds instantaneously. Even if fatally injured, a Kryptonian's cells are incapable of decay after clinical death, causing their bodies to be naturally preserved.
- Superhuman vision: They also possesses a superior sensory arrangement of microscopic, telescopic, infrared and ultraviolet visual capabilities.
  - Telescopic vision: Kryptonians have the ability to focus their vision to see something at a great distance, without violating the laws of physics.
  - Microscopic vision: The ability to see extremely small objects and images down to the sub-atomic level.
  - X-ray vision: Kryptonians can see through almost anything, able to focus their vision past layers of matter, literally seeing "through" them. Because of this ability, Kryptonians possess a sight unparalleled by any other species, possibly perceiving x-rays, cosmic rays, or other forms of energy invisible on the spectrum of light which passes through Earth's atmosphere (and solid objects) after emission from stars. The only substance they cannot see through is lead.
  - Heat vision: Kryptonians have the ability to generate and project extremely high radiation or fiery beams of intense heat energy from the eyes. Visually, the power is typically depicted as two beams of fiery energy being shot from their eyes. These beams can be made seemingly invisible, allowing Kryptonians to work undetected. This radiation-like form is not as intense as the concentrated energy beam form, as it can only superheat targets, while the beam form can destroy entire buildings with explosive force.
- Superhuman hearing: Due to their exposure to solar radiation, Kryptonians have developed incredible hearing, allowing them to hear extreme variances of sounds and frequencies, thus allowing them to pick up noises from across the globe. They have shown enough control to block out ambient sounds to focus on a specific source or frequency. For example, Clark Kent was able to hear Alfred's voice through Bruce Wayne's earpiece when near him.
- Superhuman breath: Kryptonians' capable of surviving without air far longer than humans, allowing them to hold their breath for lengthy periods of time without adverse effects. Some Kryptonians' can use their breath to generate force winds with enough intensity to freeze objects solid and brittle.

It appears that Kryptonians could also cut their hair as easily as humans while under a yellow sun. If a Kryptonian stays on a planet with a yellow sun and a nitrogen-rich atmosphere from birth, such as Superman did for the entirety of his life, their bodies will reject atmospheres similar to Krypton's, such as when Superman passed out on Zod's ship, Black Zero.