Mysteries of the Big Bang: Is the Universe Made from Nothing?

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SUMMARY

The discussion centers on the nature of the Big Bang and the implications of redshift in understanding the universe's expansion. Participants highlight that redshift indicates galaxies are moving away from each other, suggesting that the universe is expanding rather than contracting. The origin of the Big Bang remains speculative, with theories suggesting it emerged from a state of 'nothing.' The conversation emphasizes that while definitive answers are scarce, the interplay of matter, energy, and spacetime expansion is crucial to the Big Bang theory.

PREREQUISITES
  • Understanding of redshift and its implications in cosmology
  • Familiarity with the Big Bang theory and its foundational concepts
  • Basic knowledge of spacetime and its role in the universe's expansion
  • Awareness of current theories regarding the universe's origin
NEXT STEPS
  • Research the implications of redshift in modern cosmology
  • Explore advanced theories on the origin of the universe, including quantum fluctuations
  • Study the role of dark matter and dark energy in cosmic expansion
  • Investigate the concept of multiverse theories in relation to the Big Bang
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Astronomers, physicists, cosmologists, and anyone interested in the theoretical aspects of the universe's origin and expansion.

zelldot
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According to the red-shift every thing in the everything in the universe is move further and further way… so, what was the big bang? And if gravity won't pulls everything back to the centre of the universe there cannot be another big bang, one again, what the hell was the big band, the universe was made from nothing? Or was it made from something? It can’t have been matter because the red-shift proves that the universe will never go back to the centre to make a new big bang.
 
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zelldot said:
...It can’t have been matter because the red-shift proves that the universe will never go back to the centre to make a new big bang.

The red shift means that galaxies are receding from us. But that does not mean that the universe will recede forever. That knowledge is dependent on the amount of matter/energy in the universe, as well as the expansion of spacetime. In other words, there are many other variables involved. All of the variables together build up to the theory called the big bang.

As to the origin of the big bang itself, no one is really sure at this point. Speculation is that it did appear out of nowhere. It is not very likely we will get a lot of hard facts to settle the question - unless perhaps we see another big bang.
 
zelldot said:
According to the red-shift every thing in the everything in the universe is move further and further way… so, what was the big bang?
Well, if everything is moving apart, then a long time ago, everything must have been much closer together. The point where the expansion can be traced back to nothing is the Big Bang. As for what the Big Bang itself was (besides simply the beginning of the expansion), like DrChinese said, that is not so clear.
 
The red shift means that galaxies are receding from us. But that does not mean that the universe will recede forever.

sorry, i forgot to say that the universe is moving fast and fast "The opposite effect of gravity" away from the center
 
i don't want a clear answer, i just want theorys, just something interesting to read
 
zelldot said:
i don't want a clear answer, i just want theorys, just something interesting to read


Unfortunately what we have are clear answers. For wild and crazy entertainment you'll have to go to some other site.
 
could you please move this to the theory section of the forum then please?
 

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