Kryptonians

Kryptonians are an extraterrestrial humanoid species of beings who originate on the planet Krypton. Kryptonians are basically humans in their structure and appearance, but their biology is far more advanced than that of Earth-based humans where they are able to utilize energy in their body with far more direct and elaborate manners than Earth-based humans do. The source of their immense energy metabolizing abilities lies in their cells which are said to be the greatest organic power storage units in the known galaxy.

Various dimensional Kryptonians have developed superpowers in regards to Earth-based humans that vary drastically in comparison to their various native dimensions. Super speed, heat vision, x-ray vision, and super breath are among many Kryptonian superpowers.

History
Kryptonians' bodies are able to directly absorb and process yellow solar radiation through their body for a host of effects that would allow them true infinite power levels when fully charged. Red sun radiation would not only interfere with that absorption but begin to drain Kryptonians of all their powers.

Superman, a Kryptonian who has been raised on Earth since he was little more than a newborn, uses his immense superhuman powers for the citizens of Metropolis and thus, over time, has become a symbol of American heroism. Superman has earned the highest esteem and respected wherever he goes, be it from his greatest friends or greatest foes. People of Earth respect Superman too much to criticize even his smallest flaws and errors.

Powers and abilities
Under a yellow sun:

Powers

 * Solar Energy Absorption
 * Heat Vision
 * Super-Hearing
 * Enhanced Vision
 * Electromagnetic Spectrum Vision
 * Telescopic Vision
 * X-Ray Vision
 * Microscopic Vision
 * Infrared Vision
 * Flight
 * Invulnerability
 * Superhuman Stamina
 * Superhuman Strength
 * Superhuman Speed
 * Superhuman Agility
 * Superhuman Reflexes
 * Super-Breath
 * Longevity