Big Bang Theory (scientific model)

The Big Bang Theory is a scientific explanation for the origin of the universe. It does not specifically pertain to the Sun. The Sun is a star that formed billions of years ago from a collapsing cloud of gas and dust in our galaxy, not from the Big Bang event itself.

As more it learned about the universe the mysteries keeps changing. Today, the biggest mystery is probably what caused or happened before the "big bang."

Other mysteries are, what is "dark matter" and gravity. Is there a multiverse (multiple universes) and if so, what form do they take.

No. The milky way did not exist at all, fourteen billion years ago. According to the Big Bang theory, the first galaxies started forming at least a million years after the universe had started to expand.

Hmph. The Big Bang theory did not form the sun. The big bang formed the elements hydrogen, then hydrogen began to create helium. Then stars were formed out of these two elements and that is how our sun was created.

Your question is incomplete, as you imply you are going to provide a "list" of options. In any event, and while I am not a professional physicist, I believe the following are items of evidence which support the big bang theory:

1. The presence of cosmic background radiation - a low level "hum" of radiation that is more or less constant in every direction;

2. The relative fraction of Helium in the universe;

3. The fact that almost all galaxies are flying away from each other.

Assuming these are correct, this list is almost certainly incomplete - there are doubtless other items of relevant evidence.

The painting in the kitchen of the TV show "The Big Bang Theory" is called "The Son of Man" by René Magritte. It features a man in a suit with an apple covering his face.

Take your pick, as all of the following are well within the range predicted by the BB, and several completely exclude alternate explanations:

1) Distant galaxies are all seen as moving away from us, and the rate at which they are receding would be proportional to the distance from us.

2) The calculation of when all galaxies began this expansion -- but working backward to when matter would be lumped together -- is about 13.7 billion years.

3) Microwave radiation with a black-body spectrum of about 3.7 degrees Kelvin is seen coming towards our Earth in a perfect isotropic manner.

4) Old galaxies are not seen at distances greater than a few billion light-years distance.

4) White dwarfs, whose life-span is about 100 trillion years, are not observed older than 13 billion years.

5) The ratio of hydrogen to helium in all parts of our Universe are about four to one.

6) Ratios of hydrogen to deuterium are also within a specific range.

7) Ratios of certain isotopes, whose half-life is in billions of years, are in a narrow, specific range to their decay products.

It is FAR easier to change the direction of an asteroid than to blow it up. All that is needed to accomplish the former is to nudge the asteroid a little off its collision course with Earth, and this could be done with some small explosions on the side of that asteroid. Blowing up an asteroid would be a complete waste of energy.

The Big Bang Theory holds that our present Universe was, about thirteen billion years ago, in an extremely more dense state and has been expanding from that ever since. A sub-set of that theory is that our Universe has gone through an infinite series of expansions: each of which lead to a gravitationally induced end to the expansion, then a collapse of the Universe into a state of extreme density, and then another expansion. This is called the "Oscillating Universe" Hypothesis

The latest observations make the latter idea very unlikely, as our present Universe will almost certainly never cease its expansion. Either we are in the first oscillation of the Universe that failed to stop its expansion, or there were no oscillations prior to this one at all. Unless later observations show that our present conclusions are wrong, there will no oscillations after this Universe.

It is difficult to imagine how we could ever determine if our Universe was the first oscillation that failed to end its expansion or if there were simply no oscillations prior to this expansion at all.

Yes, Sheldon's older brother, George Cooper Jr., has made an appearance on "The Big Bang Theory." He was portrayed by actor Jerry O'Connell in a guest role in the show.

Nobody really knows. There are many different conclusions that are normally sorted by religion. Different religious groups believe different conclusions on who or what created the earth. There are thousands. Its generally believed that the Big Bang was the more scientific decision on how the world around us was created, and God isn't normally spoken about with the Big Bang. But, as I mentioned, nobody knows. God could have created the Big Bang, but I, and many scientists, think not.

The term cosmic soup arises in cosmology to describe a period of time very shortly after the Big Bang, when the universe is thought to have consisted of a dense mixture of subatomic particles.

Big Bang Cosmology states that our Universe has, over the last 13 billion years or so, been expanding such that the distance between every point in our Universe to every other such point is increasing. There is no center out of which matter came, no explosion, no "bang" -- just an ongoing expansion of distance between all points within our Universe.

This theory has overwhelming evidence to support it, and any competing idea is reduced to stating, "I can't explain why we see what we see -- we just do."

The theory makes no statement whatsoever on how this expansion started, or what happened "before" the start of this expansion.

Yes and no. According to current theory ALL matter has its origins in the big bang some 13.7 billion years ago. The solar system we live in (Earth included) is thought to have accreted from a nebula bout about 4.5 billion years ago.

The matter which makes up our solar system was then created in the big bang, but the solar system itself (our sun and earth included) wasn't formed from that matter until 9 billion years later.

Is it possible that ALL of the stars we see no longer exist? No.

SOME of them? Sure. A FEW of the more distant stars could easily have already gone supernova, but the light of the explosion is still on its way here to Earth.

That even applies to some relatively nearby stars. The red supergiant star Betelgeuse, at the shoulder of Orion, is known to be very old for its type, and it will explode in a supernova explosion "Real Soon Now". However, "Real Soon Now" to an astronomer means any time within the next 100 centuries or so, so it probably hasn't happened yet.

But it COULD have exploded 500 years ago - but since it is about 850 light-years away, we wouldn't know it for another 350 years!

If the universe has allready collapsed and sucked away every single star except our sun (why??), then yes, we would not notice until 4 years from now when light stops coming from Alpha Centauri followed by the rest over the years.

Like any other theory, the Big Bang theory

-- does a good job (though not perfect) of explaining a lot of things that are observed now. Like the fact that the universe is expanding.

-- leads to some predictions that are confirmed by observations designed to test them. Like the fact that the movements of galaxies is affected by redshift, which is only possible if we are moving away from them or they are moving away from us.

-- can never be proven. But it can be disproven in a second if the right evidence against it is observed. What science gives and logical thought gives us, they can take away.

The Big Bang is estimated to have occurred around 13.8 billion years ago, at the beginning of the universe's expansion. It is not directly associated with any specific century, as it took place long before the concept of centuries existed.

The four modes if pegasus are barrage mode

Upper attack mode

Omnidirectional mode

And all attack mode.

Spin does not have a direct impact on gravitational attraction. Gravitational attraction is primarily determined by mass and distance, as described by Newton's law of universal gravitation. Spin is a property of a particle related to its angular momentum and does not affect its gravitational interaction.

For the same reason that people aren't sent to jail simply because they are accused of a crime. A scientist who makes a claim, like a prosecutor, must present EVIDENCE of that claim before the claim can be accepted. Until the evidence is presented and properly examined, the idea must remain a hypothesis.

There have been too many claims put forth by scientists that were later shown to be utterly false. Unfortunately, society has a way of remembering the initial claim but forgetting the later refutation. That's why scientists are VERY reluctant to accept a new hypothesis before it has passed rigorous examination.

When it DOES pass the empirical tests, however, the scientist is often richly rewarded.

Fred Hoyle was a proponent of the steady-state theory of the universe and was critical of the Big Bang theory. He famously likened the Big Bang theory to a "Big Bang" creation event and continued to advocate for his steady-state theory even after evidence supporting the Big Bang theory emerged.

No, the Big Bang theory explains the origin of the universe and does not directly relate to the creation of volcanoes. Volcanoes are formed by the movement of tectonic plates on Earth's surface, which cause magma to rise and erupt through the Earth's crust.

A flash bang typically lasts for about 1-2 seconds, during which it emits a bright flash of light and a loud bang to disorient individuals nearby. The effects can vary depending on the type and strength of the device used.