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the big bang theory is accepted by science because there is an incredible amount of evidence leading scientists to believe it is true. For example, it was theorized that if the big bang were true, we should see microwave radiation in a very particular way in space. And when we looked the microwave radiation was there just as predicted.

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16y ago
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12y ago

Amongst the scientific community, almost no un-biased scientist (ie, one with a PhD) doubts that our Universe began to expand (NOT explode) about 13.7 billion years ago.

Amongst the un-educated and biased general public, a sizable fraction dispute this conclusion, but none can gather a scientific basis (ie, actual experimental results) for this doubt.

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12y ago

The word "theory" alone should signal that the Big Bang is not the only possibility. Why do some scientists believe it is the right one? To put it simply, they feel it makes the most sense and has the most evidence to back it up.

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There is great evidence for the Big Bang theory. The cosmic background microwave radiation, the ratio of hydrogen to helium, the static on a television and the hissing of Arno Penzias' and Robert Winston's telescope and possibly the darkness of the night sky are all evidence for the Big Bang.

The expansion of the Universe is inferred from the red-shift of retreating galaxies. Extrapolated backwards, it can be inferred that the Universe was once extremely small, the size of nothing, from which it must have erupted into an expanding space-time. In short, the expansion of the Universe itself is evidence for a primordial tiny dense Universe.

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12y ago

yes many people around the world think that the big bang is a plausable theory

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11y ago

Because it fits the available evidence.

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Q: Why do scientists believe the big bang theory is true?
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Yes, some scientists believe in God. They might not believe everything that the Bible says is true, and just because they have the Big Bang Theory, some would argue "What created the Big Bang?"


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the big bang is a theory. scientists believe that there was an explosion and now it keeps expanding. the world is 14.7 billion years old. the big bang isn't true because God created the world.


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If scientists believe the big bang theory is true then wouldn't that technically make them a hypocrite if they don't believe in god because if you think about it the big bang theory is creationism?

From another source as God is narrowly defined. Depends on your point of veiw. ______________________________ Scientists do not, in general, "believe" that theories are "true". Belief is for faith, for religions. Scientists accept that a particular theory adequately explains the facts and evidence that we have acquired so far, and look for other tests that will either confirm or refute the theory. We don't "believe" in the big bang theory; we accept that it is, so far, an incomplete explanation of how the universe came to be. When other facts are discovered that contradict it, then the "big bang theory" will be modified or replaced by another hypothesis that does a better job of explaining all of the existing and new facts. People who remain committed to accepting their pretty theories in the face of facts to the contrary are not really scientists, no matter what they claim. 'Creationism' by definition is that things were created by a supernatural entity. 'Big Bang' theorists don't usually claim there was anything supernatural involved, let alone an intelligent force driving it, and also the things being created are not complex organisms, but the most basic building blocks of matter. That means that's it's not hypocritical to believe in one but not the other. However people can also believe in both, that the Big Bang was the way their creator chose to create the universe.


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Well I do now one theory about the universe. It's the big bang theory. The big bang theory is a theory about how the universe was created.Scientist think that a big explosion created the universe.Scientist found lots of evidence that the big bang theory was true.


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Conspiracy means in science when there's something that's an idea that might not be true , E.G:The Big Bang Theory , Scientist's theory is that the world was created by it & other religons might not believe this .


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Ideas like the big bang make it impossible to believe in god?

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