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Parsons
What do you think will happen to the Universe? How long will it be until it ends? or will it go on expanding for ever?
Originally posted by Sensei
Why assume it will end? even in a big crunch... there may be repeat cyclings to the big bang again > big crunch > big bang > big crunch sequence.
If we lived long enough to witness the big crunch (if it happened) i wonder if we could survive by hiding temporarily in a fourth or fifth dimension...
hmm... too many questions, such little technology.
Originally posted by Zefram
I'm going to go out on a limb and say Big Rip; c'mon dark energy!
Originally posted by Zefram
No, the Big Rip is the result of the expansion of the universe continuing to accelerate until eventually everything in the universe is literally ripped apart. The exact opposite of the crunch.
the dimensions, unlike the hair, may be subject to different laws than we are aware of at the moment.
Originally posted by MajinVegeta
That doesn't make sense to me. Why do you believe it is tenable?
The first explosion
Caldwell's study had humble beginnings. He and his colleagues, Marc Kamionkowski and Nevin Weinberg at Caltech, were considering how a sphere of matter collapses under its own weight to form a galaxy. In computer models, they tweaked with the dark energy factor and found that too much of it would actually prevent the sphere from collapsing. In extreme cases, the sphere exploded.
Originally posted by MajinVegeta
I enjoyed the article. But it didn't make me change my mind about the big rip.
This sounds a lot like the Big Crunch to me.
Secondly, what rips the matter apart? The dark matter or the phantom energy (is the phantom energy, since the article related it with the cosmological constant)?
The leading theory about the end of the Universe is known as the "Big Freeze" or "Heat Death" theory. This theory suggests that as the Universe continues to expand, the energy and matter within it will become more dispersed and eventually reach a state of complete entropy, resulting in a cold, dark, and lifeless Universe.
The Universe will likely end with a whimper rather than a bang. This is because the "Big Freeze" theory predicts a gradual decline in energy and temperature, rather than a sudden and explosive event.
There is a theory called the "Big Crunch" theory, which suggests that the Universe could eventually collapse in on itself due to the force of gravity. However, recent observations and data suggest that the expansion of the Universe is accelerating, making a "Big Crunch" scenario unlikely.
It is difficult to accurately predict when the Universe will end, as it depends on several factors such as the amount of dark energy and the rate of expansion. However, based on current estimates, it is expected that the Universe will continue to exist for at least another 100 trillion years.
There are many theories about the existence of other universes, such as the multiverse theory. However, there is currently no concrete evidence to support the idea of other universes, and it remains a topic of ongoing scientific research and debate.