Fate of the universe

Well, the nearest star that's large enough to super nova, Proxima Centauri, is about 4 light years away from us. Even if it super novas, we probably wouldn't be affected.

The Sun is supposed to nova in some 40 thousand years...or something like that.
We'd be dead before we'd get the effect of a supernova. Remember, many of the stars we see have died already, but we're so far away so the light from the star still reaches us.

 

You can't know until it happens. Then you'll be dead, and you can never know how it continues.And IF it continues and life starts over, you will never know. Sorta like how you can't tell the future. You're personality won't be there and it'll change the whole future when you think of it.​

 

Our sun doesn't have enough mass to implode. Our star will most likely become a red giant. It's diameter will increase to a degree that Earth is engulfed. There are also theories that state when the outer shell of the sun is released the resulting shockwave will push the Earth into a further orbit so that it is not engulfed. But it will still be unihabitable.

 

Global Warming can completely ruin the planet. Which is by the help of the Sun, in other words the earth could(I know it sounds stupid) eventually just fall apart.​

 

That's simply on too small of a scale considering we're discussing solar, galactic, and universal end. Global warming is only major in that it deals with a shift in the climate. The Sun isn't simply increasing in temperature or heat output, rather the Earth is experiencing a stage of rapid warming. This brings us to another debate regarding it's natural occurrence. Despite the fuss about the subject, Global warming would never tear the planet apart or make it completely inhospitable.

 

El Wrong-o. To a certain degree it'd make more landslides, forest fires, and unsupliable to our natural plants, which would kill animals we would eat if veg. was gone, and the fish, so basicaly it'd make it completely inhospitable to all life. ​

 

Hey guys...we're talking about the universe, not global warming.
And just to add something, it doesn't actually exist.

Anyway.
If the sun did anything besides keep buring the way it is now, Earth as we know it would be destroyed or pushed out into the universe.
And as I said, as much, much larger stars supernova and create black holes, planets, other stars, and any matter existing would be absorbed.

 

Forrest fires? That's quite an assumption. The polar ice caps have the chance of melting, but as to how much of them may melt is indeterminable at the moment. You make an even bigger assumption in thinking that the entire planet will be covered with water. It's more probable to assume that fair portions of the planet will remain relatively dry even if all the polar ice caps were to melt as opposed to some fantasy water world. Without any apparent evidence it's rather rash to assume such a worst-case scenario from Global warming. You're basing this on probable speculation.

There's no proof on that matter. You can argue a natural climate shift, but you can't deny that we're effecting it in some way-- it's as much up in the air as the questions regarding the universe, albeit just a little closer to home and empirical study. But this is another debate. Back on to the topic.

 

The Earth is moving closer and closer to the Sun... (or the other way around XD)

That isn't the whole universe but if the sun implodes then this will happen:

Sun is gone -> Source of heat, energy and light is gone -> plants die -> oxygen is gone and all living things must breathe oxygen to circulate their body and lungs -> humans die -> water grows cold -> planet freezes -> other planets freeze -> zip, nada, blank. Our little galaxy is doomed.

It is a really scary concept that is very, very possible, though it probably won't happen for hundreds of generations. But in hundreds of generations, the Ozone layer will definatly have been destroyed and the ultraviolet rays will have already reached our skin and killed us off.

 

I dunno, this may sound kinda stupid but, if you take a strip of paper, twist it once then staple/glue/tape both ends together then both the inside and the outside is connected, you can run your finger along the outside and inside of it without lifting you finger, you can even cut it down the middle and it will just get bigger not turn into two seperate things. Maybe, our universe is like that? I also think the idea of The Big Crunch is interesting as well, and that it would cause another big bang leading to another recreation and destruction, so on so forth. the consept is facinating. Kinda is like pangea the 'super continent' it breaks apart but will eventually form back together again, the tectonic plates are always moving, it's highly likely that there have been many pangeas in the past and coming in the future, so maybe it's like that for the universe as well.

The thing about the black hole idea maybe possible as well, I mean, EVERY galaxy has a huge black hole at it's center, that's alot of black holes out there, and eventually you would think they would suck everything in, plus the new ones being made.

 

True, we're doing stuff, but I've seen info that shows that global warming isn't really as huge a "threat" as everyone is making it.

The Sun is also the force of gravity holding the Solar System together, so when the Sun dies, the planets will either drift into space or be scorched and then drift.
We don't know for sure if the ozone layer will be gone; it is constantly regenerating.

That's a way to look at it that I haven't heard before.
We can't say for sure if the universe has been going on for billions and billions of years through the Big Bang/Big Crunch theory, but we have picked up radiation from the Big Bang that formed our universe.

There's also no limit to the black hole's capacity, so if the gravitational balance of a solar system is thrown off, it could cause the planets in that system to be absorbed, and because that miniscule amout of gravity is gone, another planet gets absorbed, creating somewhat of a domino effect to end the universe.