In the bible,the lord says nobody knows when the world will come to an end.And people who are saying this, stop scaring the cra* out of people and chrstians should know about this.And anyway,(sarcastically) Oh "big deal" the planets are going to allign!What does that have to do with anything?Thats not going to do anything
yes it will, the/our sun will eventually go supernova, or blackhole, in which we will either be 1) burned alive(or something of that nature for a supernova) or implode under the emmense preasure of a blackhole, eitherway, it will be instant, most likely we will know (who knows, in a million years, deep space travel may be possable) but, eventually it will end. but in 2012? our sun is middle aged(estamated), what our sun is 6.4 billion years old? we still have 6 and one half billion years.
We pretty much do in fact, stars don't have an infinite amount of hydrogen to fuse into helium, eventually it will run out...and fuse helium into higher elements, where it expands and will engulf all the planets up to earth/mars or so, then once it runs out of stuff to fuse that gives more energy than it uses...it's not big enough to supernova, and will gently (relatively) collapse into a white dwarf. Earth would be...incinerated during the engulfing stage and left barren of all life, and even if something survives, it must evolve quickly to adapt to the practically no light...or heat.
Ours is a middle sized star, still burning hydrogen...
there's been solar winds before... actualy, auroras are actually solar flares hitting out atmosphere :P i googled it cause i wanted to know what solar flares were when i was 10 lol im too smart sometimes :P