If One Big Bang was real expanding from a singularity then why is Milky ways spirally expanding separetly?

Question

Theorethically wouldnt there be Only one Giant Galaxy spiraling from a common center?

Answer 1

No. The Milky Way Galaxy is not expanding because the material in the galaxy is all gravitationally bound to the galaxy. Similarly, our Solar System is not expanding, Earth is not expanding, and humans only expand when they eat too much!

In fact, it's only separate galaxy *clusters* that are expanding away from each other.

The Big Bang didn't happen at one particular place, it happened everywhere, because before the Big Bang all of space was confined to one point. Therefore there is no center from which everything is expanding away. (It's a common misunderstanding, though, and takes a little while to fully wrap your brain around - it still confuses me and I've been teaching this stuff for almost 10 years now!)

Answer 2

This issue is one of debate with cosmologists. Many of the phenomena that we believe, because of "human experience", are, in many cases, being overturned as quantum physics develops. Some physicist are not certain the the "Big Bang" actually occurred (Inflationary Theory)! As mathematics progresses towards the time of origin, all of our laws of physics (and time) disintegrate.

Currently, the observable universe is accelerating more quickly (inflating) than what the theory of the "Big Bang" allows (determined by Hubble's observations). Some think that gravity may be a repulsive force as a result and that what we familiarly call gravity may be the nuclear weak force. However, until quantum physics has been completely defined, we do not know (other than hypothesize).

Currently, physicists have only accounted for about 30% of the matter (and energy) required to maintain our universe - where is the rest? These answers can only be answered by quantum physics.

If you want a real "mind blower" consider this - reality as w experience it, may, in fact not be real at all (according to quantum theory).

However, in more macro terms - the universe we know, is not static. It is constantly changing. We just do not notice the change. The universe is expanding; galactic clusters are expanding,. thesolar system is expanding and contracting depending on what you are observing. The moons orbit is diminishing by about 1/2 centimetre per year - you'd never notice it though; the earth's rotational speed increased as a result of the earthquake in Indonesia in 2005, but because these changes are so minute in scale we don't "notice" the change.

The reason there are galactic clusters, etc., is believed to be due to "clumping" in the initial stages of spacetime.

Answer 3

First, if you could explain what your asking a little better. But what I think you mean is: If the Big Bang was expanding from a singularity then why is the Milky Way its own Galaxy? In theory the Big Bang is what actually produced the infinite world we call space. It was so massive that it actually threw out all if the substances into space. Some of these substance are so huge that other substances begin to revolve around them. I am going to stop right there because you need to take and Atronomy class and the *&$#@ ain't one.

Answer 4

We live in the milky way galaxy, there are billions of other galaxies. Galaxies aren't expanding, the entire universe is, one day all matter would return to the center for another big bang.

Answer 5

When the Big Bang happened there was only plasma and not as much as the chunkiness of hydrogen atoms. The hydrogen had to cool even more and become more chunky to self gravitate into galaxies their constituent stars. And I don't claim to understand it on a deep level, but those who claim knowledge of cosmology say there IS no "center" of the universe.