Mindfug (physics questions)

[shreddingdefense]

Just now Morgan Freeman on Beyond the Wormhole said that "darkness can take a hold of the universe forever"..something like that. Anyway if there is just a continuous cycle of big bangs, darkness can't take a hold of everything forever.

 

Well if morgan freeman says so then it must be true! lol.

 

Its possible that the universe will never collapse on its self, still ''darkness can take a hold of the universe forever". hmm well there is dark areas around planets, moons, stars and other celestrial bodies..maybe thats what he means? i dunno.

[KillerKat]

He was talking about what the other show was talking about. "the end"

[shreddingdefense]

He was talking about what the other show was talking about. "the end"

 

How are they saying it will "end".  I assume they are not talking about the universe calapsing on itself.

[shreddingdefense]

I was watching the cosmos on sunday and the part showing our milky way galaxy converging with another galaxy freaked me out. How is it possible two galaxys going through each other that none of the starts, planets, suns, moons, etc not touch each other? look like something would have to hit. I'm serouly doubting if two galaxy were to collide, the things within them would be untouched.

[KillerKat]

I was watching the cosmos on sunday and the part showing our milky way galaxy converging with another galaxy freaked me out. How is it possible two galaxys going through each other that none of the starts, planets, suns, moons, etc not touch each other? look like something would have to hit. I'm serouly doubting if two galaxy were to collide, the things within them would be untouched.

There is so much space in between the stars that we can't comprehend. That's why they're saying there would be very little to no collisions at all.

[KillerKat]

How are they saying it will "end".  I assume they are not talking about the universe calapsing on itself.

That the last dying star will fade away and then there will be nothing. Paraphrasing.

[shreddingdefense]

There is so much space in between the stars that we can't comprehend. That's why they're saying there would be very little to no collisions at all.

 

Hmm i still dont think so. Our sun is too enormous not to touch anything. sure if a planet would to hit it that it would do nothing, just burn up completely and have no effect on us.  Plus it showed both galaxy passing by and nothing else happening. Wouldnt gravity on one or all bodies in our or the other galaxy have an effect on another? possible they merge together?

[Kevin Greene]

[shreddingdefense]

That the last dying star will fade away and then there will be nothing. Paraphrasing.

 

hmm i could see all stars fading awway. Awfully long time from now. stars becoming super novals would whipe most of the planets away but not all (maybe?). so they are saying space is just empty pitch black, not a damn thing? that sucks

 

[Brooklyn Bully]

How can they claim the universe will end? They barely even know what it is, have next to no proof of its origin, can only see like 10% of it (I made that number up but it sounds right), and have little to no way of testing the universe. Guesswork is so boring. I love it when we can prove things, like with the Mars Rover, etc. 

[lightsout]

All my science teachers, books, and plus other shows that ive watched have always made it seem that when the universe reaches a point where it not longer grows (what it is doing now), that in theory that the universe will start to shrink (taking billions upon billions of years to do so just like its growing now). It will shrink to the point that our galaxy and others will die (after all how can they be here if our space we occupy now is gone? right?).

 

anyway it will shrink to the point where its as small as a atom, and the energy cant be compressed that tiny without a explosion; thus another big bang and the process starts anew. Universe expands again, plantes, suns, stars, moons form again, etc..then universe shrinks after alot of time to another big bang, so on and so forth. If you believe in this theory and that somehow an "Earth" is created after every big bang, with life on it like our own (plus many other planets that may support life), then yes nothing will last forever, life will find a way.

Actually, to your first sentence here...no. The universe is STILL growing and expanding. We're still seeing galaxies flying away from each other at a rapid pace. It's actually getting faster. It's not slowing down.

[shreddingdefense]

Actually, to your first sentence here...no. The universe is STILL growing and expanding. We're still seeing galaxies flying away from each other at a rapid pace. It's actually getting faster. It's not slowing down

 oops i reread my post, when i wrote (what it is doing now), i was meaning that it was still growing and expanding..sorry my bad.

[lightsout]

 oops i reread my post, when i wrote (what it is doing now), i was meaning that it was still growing and expanding..sorry my bad.

Meh, partly my fault. Reading comprehension is hard. :(

[shreddingdefense]

Actually, to your first sentence here...no. The universe is STILL growing and expanding. We're still seeing galaxies flying away from each other at a rapid pace. It's actually getting faster. It's not slowing down.

 

Correct. Eventually though it will slow down. No one truely knows when though. Its theorised that once it slows to a creaping crawl, it will stop growing entirely. How long? thats anyones guess. Once it stops growing they believe that it will then slowly calapse (like rewinding, galaxies will be pushed toward one another. Possibly suns will die, in the process planets will be engulfed by those suns, and alot of other things). The further along all matter will be the size of a atom, eventually the big bang will accur again. Do i believe this though? i have no idea if true, goes way beyond my own comprehension of the universe.