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I believe the expansion of the Universe continues to accelerate. If this continues, there will never be a Big Crunch. It is impossible to know if there was a Universe before the Big Bang, and it appears that there will never be a Big Crunch which means it appears that there will never be another Big Bang.
Please click on the following sources I have attached for your reference and convenience.
Please click on the following sources I have attached for your reference and convenience.
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A scientific theory is a unifying concept that explains a large body of data. It is a hypothesis that has withstood the test of time and the challenge of opposing views. The Big Bang Theory is supported by extensive empirical data.
There is no scientific evidence that the universe will reverse its expansion and end in a "big crunch." All current data indicate that the universe will expand forever, ending up as a thinning soup of energy and/or particles.
The Big Bang physically cut off any history of what could be before it, if the concept of before even makes sense without time as a dimension. A current idea being worked on by some cosmologists is that our universe exists within a multiverse of many other universes -- perhaps an infinite number of them. Each universe would begin with its own Big Bang. The time-space of each universe is separate from all the others.
For more, watch the video at the 1st link - "A Universe From Nothing" by theoretical physicist Lawrence Krauss, read an interview with him (at the 2nd link), get his new book (at the 3rd link), or read an excerpt from his book (at the 4th link).
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There is no scientific evidence that the universe will reverse its expansion and end in a "big crunch." All current data indicate that the universe will expand forever, ending up as a thinning soup of energy and/or particles.
The Big Bang physically cut off any history of what could be before it, if the concept of before even makes sense without time as a dimension. A current idea being worked on by some cosmologists is that our universe exists within a multiverse of many other universes -- perhaps an infinite number of them. Each universe would begin with its own Big Bang. The time-space of each universe is separate from all the others.
For more, watch the video at the 1st link - "A Universe From Nothing" by theoretical physicist Lawrence Krauss, read an interview with him (at the 2nd link), get his new book (at the 3rd link), or read an excerpt from his book (at the 4th link).
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I can only speak for the last seven. I can't remeber or see anything before that.
Unfortunately, with the evidence available now, it looks like ours will expand forever ending the cycle.
Unfortunately, with the evidence available now, it looks like ours will expand forever ending the cycle.
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It is unexplained if another universe exist before our universe began to form. The answer is unknown.
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No evidence exists, nor would you expect to find it since we can't even observe our own universe back to precisely 'rime = zero.'
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You need to learn the difference between "could have" and "was". I suggest you get yourself a dictionary.