What of evidence supports the big bang theory of the galaxies?

Answer 1

This is a lot of physics to explain, so I'll try to make it really simple and quick....

Before the 'big bang' everything was all compressed into a small ball of 'matter,' which went 'bang.'

As all the matter had just exploded it got thrown out from the centre of the bang. This is kind of like shrapnel being thrown out by a hand grenade. As its all been thrown out into empty space it keeps moving as there's nothing to stop it. (This is basicly why scientists say the universe is still expanding).

So all this matters flying out all over the universe. Now as its from an explosion it doesn't go out in an even spread. No it goes out in chunks, and these chunks are the starts of the first galaxies.

These chunks that start the galaxies are all wibbly wobbly universe residue stuff from the bang, as the larger bits have more gravity than the smaller bits, the smaller bits get pulled towards the larger bits. This is why certain galaxies get their own distinct shapes.

Basicly that's it how the big bang formed the galaxies.

There is a lot more science type stuff involved, but that's the essence of everything they'll tell you!

Answer 2

Georges Lemaître, a Belgian physicist and Roman Catholic priest, who, in 1927, independently used Friedmann's equations to propose that the inferred recession of the spiral nebulae (per Edwin Hubble's discovery of 1924) was due to the expansion of the Universe, is called the pioneer or father of the Big Bang Theory. As such, the Jesuit priest Georges LeMaitre was credited with being the first to mathematically detail a cosmological study now known as the Big Bang.

However the consensus for modeling cosmology was agreed upon based on the work of four scientists: Alexander Friedmann, Georges Lemaître, Howard Percy Robertson, and Arthur Geoffrey Walker. Occasionally referred to as the FLRW, FRW, FL, or RW (e.g., a complete or partial combination of their last initials) Universe, it presents a metric used to explain Einstein's field equation of general relativity and thus became the foundation for the currently understood version of the standard 'Big Bang Theory'.

Note: While the Friedmann Theory preceded the Big Bang Theory, the developed equations were fundamental to establishing a foundation for the Big Bang Theory. Alexander Alexandrovich Friedmann is best known for his pioneering theory that the universe was expanding, governed by a set of equations he developed from Albert Einstein's equations of general relativity, showing that the Universe might be expanding in contrast to the static Universe model advocated by Einstein at that time. From these equations he postulated three Friedmann models describing positive, zero and negative curvature respectively. This dynamic cosmological model of general relativity would come to form the standard for both the Big Bang and Steady State theories.

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The name "Big Bang" was coined by Sir Fred Hoyle, who was a life-long proponent of the alternative "steady-state" theory of the universe. He used the phrase "big bang" in a sarcastic way.

Answer 3

It doesn't.

Big Bang Cosmology (BBC) -- the paradigm stating that our Universe has been expanding at a (relatively) steady rate for the last 13.7 billion years or so -- explains why we see what we see, but it does not explain where the initial matter came from, nor where space containing the matter came from, nor why space began to expand. Those questions are (at present) matters of speculation and philosophy as much as science. In that sense, the question, "Where did the Universe come from?" is like the question, "Why is there lightning in the sky?" In both cases, scientists must say, "At this point, we don't know."

Answer 4

There are two types of galaxies. Spiral galaxies are formed from the collapse of a protogalactic cloud. Elliptical galaxies are formed as a result of a merger of two disk galaxies.

Now each of these galaxies have a nucleus composed of a supermassive black hole that keeps the contents of those galaxies from shooting out.

Answer 5

There is no specific Big Bang theory for galaxies.The evidence for the Big Bang theory includes:

* The redshift of distant galaxies. Most galaxies are moving away from us.

* The distribution of elements closely matches what is expected from calculations of nucleosynthesis.

* The cosmic background radiation, too, closely matches what is expected from our understanding of the Big Bang.

Answer 6

Only indirectly -

The "big bang" formed the universe and all the matter in it,

MUCH latter some of that matter clumped together to form the solar system.