is the big bang theory correct?

Answer 1

You have to be careful asking if a scientific model (big bang, gravity, relativity, whatever) is correct. There are philosophical implications that most physicists avoid.

What we can say is that the standard model of cosmology explains a lot of phenomena pretty well--the observed expansion of the universe, the existence (and a lot of the details about) the cosmic microwave background, the abundance of the light elements in the universe, and a lot more. There are some problems with the model--the biggest is that we do not observe the amount of matter/energy that would be needed to explain the rates of expansion. So we hypothesize that there is some other kind of dark matter and dark energy out there that we can't see yet. Or maybe gravity works a little bit different than we think. Also, we haven't figured out the first fraction of a second (or whether there was a time before the big bang or whether the universe came from a singularity in space and time).

Anyway, while there are some outstanding issues with the details, we can safely say that 14 billion years ago, give or take, the universe was much smaller and much hotter than it is now. That much is now about as close to a proven fact as science can get.

Answer 2

The scientific answer is that the big bang theory is more probably correct than not. Far more probably.

The most basic of the big bang theory says that the universe expanded from a very tiny ball to what it is today. Hubble's law provides for this fact. One of the most compelling proof the the theory, however, is when one of its major predictions, the existence of the cosmic background radiation and the fluctuations therein, where finally found true.

Answer 3

Based on all the reading I have done on the subject I would have to say that it is correct. Before it was accepted by the scientific community the solid stare theory was in favour.

Answer 4

No,

If the universe began with a "big bang" all the planets would spin in the same direction.
Venus and Uranus are rotating "backwards" 6 of the Solar System's 63 moons rotate backwards. Jupiter, Saturn and Neptune have moons orbiting in both directions.

Jupiter Saturn and Neptune are still hot planets. Evidence they have not existed long enough to cool off.

The rings on Saturn are rapidly being destroyed by meteoroids and should have been pulverized in just a few thousand years.

Earth's moon has a hot interior. This is evidence of a young origin.

Last of all, the rate of Earth's spin is slowing. If billions of years old, Earth would spin much slower today. The distance between the Earth and its moon is gradually widening. Over billions of years the moon would be much farther away from the Earth.

No it isnt.

Answer 5

Big Bang is consistent with the religious belief that the universe is finite. If you believe in an infinite universe, then Big Bang is totally wrong. The fact that scientists who dispute Big Bang can't get government grants in the USA amounts to an unconstitutional establishment of religion.

Answer 6

No one can answer this question as far as if the event occured. We will never really know. No one was there to verify it. We can only assume that it is correct based on our knowledge of the universe. But all of the science seems to point in that direction.

Answer 7

We can't use the word "correct" but we can say that so far it is the best working model for the origin of our solar system. A lot of the hypotheses of TBBT make sense. There are other theories but TBBT is the most widely accepted because it makes the most sense.

Answer 8

SIMPLE ANSWER:
Astronomers have observed that no matter which direction you look, everything is moving further apart. Thus, it would seem that long ago, things were much closer together.

Answer 9

It is a theory, once it is proved correct, it will become fact......but for now it is theory.....neither right nor wrong, just a guess that fits the facts we know. So your question needs to be re-asked.

Answer 10

http://astronomy.swin.edu.au/~gmackie/BigBang/universe.htm