Quote Originally Posted by az666
ok now to write somthing more on the topic of this thread.....but still not completly on track.....
how is the universe end?
i read into this and this is what im into.....
untill recently science people thought that there were two ways the universe would end.....either the universe woule become so dense that gravity (the most dominant force) would halt the expasion of the universe from the big bang, if this is the case we would experiance a "big crush" where everythin would be pulled back together
or
the expasion would carry on forever....

but then in 1998 astronomers discovered that the universe's expansion isnt if fact slowing down but rather speeding up! this would condem us to oblivion. however because no one actually knows what is causing the expansion to speed up. Astronomers have called this force "dark energy" which is still a complete mystery.

(btw i dont really know where this is going so if you are bored of reading id stop now.)

they think that in 6 billion years time the sun will have swolen up big enough to boil our oceans and possibly even swallow up the planet. The sun will then having used up all its nuclear fuel will shrink to about the size of earth leaving our planet if it still exists cold enough to be covered in nitrogen ice! BUT at least it will look pretty: gas blown into space will be energised by the ultraviolet rays from the now small sun...i think they are called white dwarves or somthing?....but the small sun will energise the gas making the earth be surrounded by a glowing multi coloured nebula.

Our galaxy is in for a rough time too...we are heading towards slightly larger spiral called Andromanda. It is thought that we could collide in as little as 3 billion years.If this hapened........................................... ............

do you guys want me to continue cause ive been writing this for about half an hour now and i was about to draw a diagram....but i cant really be arsed if no one can be arsed to read all this.....

do you want me to carry on? i probly will at some point even if you dont want me to.....maybe i should of made it into my own thread?? sorry
Yeah, the sun will eventually become a white dwarve. But if the energy it holds ever goes unstable, the sun's remaining energy may become dark matter, and you know what that leads to:

A BLACK HOLE

If the sun doesn't become a black hole it'll explode, which will leave behind enormous fields of powerful energy and dust. After that, slowly after a few billion years, the dust and energy will slowly form back together, thus forming another sun. <This is I think, all based on scientific studies, not theories. But human existance will probably cease by than anyway. But when the sun weakens, I think we may slowly go into another "Ice Age" and then after that, the sun's gravitational fields will weaken, causing us to drift out of our orbit into deep black space. But I'm thinking that the coldness isn't what kills us, but the high speeds that will cause our atmosphere to simply blow off the Earth's surface, leaving us with the most powerfullest wind storms and no breathable oxygen.