I know this seems like an odd subject, but all the talk of the latest Superman reboot set in a realistic universe got me thinking.
How is there anyway Superman's powers could be reality based?
Well first let me tell you my idea for Krypton and Kryptonians.
Krypton has been around for 10 billion years, Earth only about 4.5 billion. Intelligent life evolved on Krypton when it was around the same age of Earth at the start of it's evolution, when it's sun was still bright and yellow. It was at that time quite similar to Earth in many ways. The Kryptonians evolved to be almost exactly like humans on the outside, but with a higher intelligence, and an ability to use all of their brains (super memory). When their sun started to die and turn into a Red Giant, they developed technology to grow food, and to sustain life on their dying planet. Their bodies evolved with the ever increasing harsh environment, gaining what we would deem extraordinary abilities. These abilities were just necessary for survival for them.
Invulnerability,Flight:Due to Krypton's unstable core, it's gravity increased exponentially. The kryptonian body developed a sustainable force field that can defy all gravity. This force field enables them to project themselves, through any environment. This force field also serves other purposes, temperature control, oxygen control, and to sustain the body in an unlivable environment. Harder to penetrate than any substance known to man, the force field also kept them warm, and safe.
Xray ,Heat Vision,Super Vision:Being a planet rotating a dying sun ,The light on Krypton would be very dim, but once was bright. The Kryptonian's eyes adapted to all spectrum of light, and are able to view the Electromagnetic Spectrum with ease. To fuel this ability their eyes are able to absorb massive amounts of light. They can release excess light via optic blasts, which would help with navigating their iced over planet.Their eyes became able to see 1000 times sharper than an eagles because of this adaption,(and to help control flight ).
Super Strength:Also due to the gravity, the Kryptonians developed a strength (increased even more by the force field), unthinkable by human standards, and when in Earth's low gravity, beyond imagination.
super Hearing:To protect against hearing loss, and to sustain balance in flight, The Kryptonians developed a different way of hearing. Their ears manipulate all frequencies and change them to an audible range.
Super Speed:To survive, the Kryptonian body's adrenalin system became much larger and much more potent than a humans. This coupled with their strength and force field enables them to go unimaginable speeds.
Super Breath:Kryptonians developed much larger lungs than a humans, and a need for only a tiny amount of oxygen.They can also use their force field as a secondary oxygen tank. This along with the temperature control inside their force field enables them to intake high amounts of oxygen and emit it a sub zero temperature.
kryptonite: Radioavtive piece of their world. The high kryptonian radioactivity weakens the force field around superman thus weakening most of his power.
Those are just some of my idea's.. I would be happy for some input, and your ideas also!!!