Again can I ask why the matter is in clusters in space and not equally distributed in the vacuum?

Question

sorry for the laymans terms lol

Answer 1

If you want to go all the way back to a time just after the Big Bang happened and there was nothing but immense energy, we know that there were fluctuations in that energy; some extremely tiny regions had a higher energy density than others, and it's in these more energetic regions that the first elements (mainly hydrogen gas) were more concentrated. From there on, it's simply a matter of gravity going to work and starting the formation of the first stars, then galaxies, etc.,.

Answer 2

I think matter is clustered in space because the 4 known fundamental forces of nature (Strong Nuclear, Weak Nuclear, Electromagnetic, and Gravity) did NOT develop at exactly the same time.

Answer 3

Gravity.

Answer 4

This is an important question.  If all of the matter were distributed equally, one might expect that no large structures could form because gravitational attraction would be equal from all directions.

However, the universe was never completely smooth or isotropic.  The clustering of matter is due to a slight anisotropy in the early universe.  This anisotropy was predicted in the theory of inflationary cosmology by Alan Guth of MIT.  The anisotropy was confirmed by observation of the cosmic background microwave radiation.  George Smoot of Berkeley won the Nobel Prize in Physics for his measurements of this  slight anisotropy that produces regions of space with slightly more matter and other regions with slightly less matter.  This minor difference was sufficient to allow matter to condense into stars.

Answer 5

Matter tends to attract other matter. The more matter that any matter attract increases its ability to attracts more matter. The force that accomplishes this attraction of other matter is called gravity.

Answer 6

Gravity tends to pull two clumps of matter together.  The bigger the clump grows, the more gravity it has.  The more gravity = the further away it can pull other clumps.

Answer 7

The initial clumping of matter just after the Big Bang was likely due, not to gravity (which is too weak a force at the atomic level), but to mutual electrical attraction of the newly-formed ions and atoms.  As the newly-built clumps became larger gravity took over.

Answer 8

On large scales, it is in fact evenly distributed. On small scales it clumps due to local gravity.

Answer 9

Gravity. Only inevitable that eventually one particle would get near enough to attract another and then it snowballed attracting more and more.

Answer 10

That's a very good question. In the absence of external forces, you would expect the Big Bang would have been totally uniform, and the universe would be nothing more than a uniform cloud of hydrogen and helium. This would be pretty bring, except there wouldn't be anyone around to be bored.

The answer appears to be quantum fluctuations. Quantum theory tells us that at the smallest levels, there is a large component of randomness. These random variations that occurred when the universe was still tiny expanded into large-scale variations when the universe inflated. As the universe evolved, gravity and other forces amplified these initially small variations, leading to matter clumping together to form stars and galaxies.

Answer 11

What she said :) Gravity is the reason.