# Why there is so much “nothingness” in the Cosmos?

I mean look how big is the Cosmos and hof few planets and suns are outthere, compared to the vast "nothingness" between them.

With "nothingness" I mean no standard particles like atoms, electrons etc.

Why is that the ratio is so hugely in favor of "nothingness"?

• – Kitchi Mar 19 '13 at 10:23

Why the universe is not homogeneously 'filled' with these particles is an important related question$^1$. Small fluctuations in the density of the early universe sparked the birth of huge structures due to gravitational reinforcement. A slightly denser part of the early universe has a slightly higher gravitational pull, so more particles are attracted to that region. More particles in that region means an even bigger abberration from the mean density of the early universe, so this thing is self-reinforcing. And so structures are born. Stars come into existence.
$^1$ Another very interesting one is why we see so little antimatter in the universe, but I think there are already a few questions about this on here. (for example, this one)