Quote Originally Posted by FFIXFreak View Post
Without the sun, photosynthesis will not occur! so i am sorry, but you are wrong! I am not saying their will not be oxygen after the sun is gone, but it will no longer be produced, thus we will RUN OUT! Like i said the sun is not going to die out for another 2 billion years so i think by that time we will be able to create our own form of energy for plants so yes technology can save us(look at what we have done the past 200 years). If you have any other comment please read everything before you type anything else, and possible do some research!
You're confused, I never claimed that oxygen would still be produced. I simply stated it would still exist. Whether or not it would be a level high enough to maintain life is irrelavent as the effects the dying sun will have on life will wipe out plant and animal life far sooner than our sun stops producing light. When it starts running out of hydrogen it will expand from it's current state into a red giant many times it's current diameter. The amount of energy it will be giving off will turn the earth into an inferno, anything living on the surface will be incinerated. Of course the existence of oxygen and an atmosphere at all assumes the solar winds produced by the new giant will not wipe out our atmosphere all together.

As for your "research", the sun has been estimated to have enough fuel to continue burning for another 5 billion years or so, and will continue to radiate energy for an unknown amount of time after that in the form of a white dwarf.