Myths About the Big Bang

The Big Bang theory tries to explain what happened at very beginning of our universe. It is one the most fundamental concept of modern science but unfortunately, also one the most widely misunderstood one.

1. The Big Bang was an explosion:

there was no "explosion", but instead an "expansion" (and universe is still expanding). Example: reather than imagine a balloon expanding. So the matter isn't flying outwards from an explosion, the matter is actually  standing still while  space itself expands dragging the matter with it.

2. The Big Bang has a Centre:

no point is special in the whole universe and all points are equivalent. and there is no special  direction in the universe 

 3. The Big  Bang  theory  can't explain what came before it:

that's true because, the limitation  of current model of big bang theory is that it can predicte precisely what happened  after big bang bit no idea before big bang. Our current physical theories do not explain what happened prior to the Planck age of unvirse (~5*10-44 second). strictly speaking, the big bang model has very little to say about the big bang itself, because it describes what happen afterwards.

4. There's is no evidence for big bang: 

the big bang theory does not have a good amount of evidence behind it. Some of them( main 3): 

a) The cosmic Microwave Background Radiation  (CMBr): 

The most strong piece of evidence for

 the big bang is the existence of the microwave background radiation. If the universe was initially very, very hot as Big Bang suggests, we should  be able to  find some remnant of this heat: as the universe  expands, the gas whitin it cools. Thus the universe  should be filled with radiation that is literally the ramnant heat heat left over from Big Bang, which is the CMBr.(When the radiation began its journey 350,000 year after the Big Bang it was not Microwaves but visible light. Its wavelengths has increased by the thousand times, just as the universe itself a thousand time).

b)The Cosmological Redshift :

When scientists study the universe, they find out the galaxies in the universe are moving away from us. So if we play the whole thing reverse, we'll see that all that galaxies will come back to a single point in time: The Big Bang.

c) The abundance of the "light element" Hydrpgen and helium found in the observable universe are through to support the Big Bang model of origins:

it was possible to calculate how much of each element should be formed in the initial event. If taht number didn't match up wit observations, the Big Bang theory would be short. Fortunately, the prediction do not match up pretty closely. It should be obvious that, given a bunch of protons, electrons, and neutrons, hydrogen should be easiest to form. In the universe today, we observe 75% hydrogen, 24% helium, and 1% of everthing else. This discrepancy is easily accounted for nearly 14 billion year of star cooking hydrogen into helium and other heavier elements.