>turn on a lamp in a dark room >fills the whole room with

astronomy is not science
its all guess work, nothing is empirical

>>8302229
This is somewhat related: https://en.wikipedia.org/wiki/Olbers%27_paradox

Also, keep in mind that although stars are very large, and there are a shit ton of them, they are also separated by vast amounts of space. Your room gets filled with light because your room is small and the light can reflect off the walls and the other objects in your room. In space, there are no walls; just a shit ton of empty space that takes years upon years for light to traverse.

>>8302229
The short answer is there's nothing for starlight to bounce off of. No air, no walls, no desk.

>>8302229
>>yet somehow space is dark, black
theres nothing for the space in between to reflect off of. So yes its mostly black because those stars light up in all directions but the rest of the universe is mostly empty regardless

>>8302231
>nothing photographed is empirical
Lrn2empirical fgt pls

If the universe were finite, wouldn't the edge be lit up in some way

>>8302229
There's a fuck ton of dust blocking the light. That's why you can only see a tiny bit of our own galaxy.

>>8302631
Depends on what the interface between the universe and the "not universe" is like. It doesn't necessarily need to be reflective.

>>8302631

The "universe" isn't finite, though.

The universe as in all current matter is currently finite, yes, although it is tending in the long term towards infinity.

The universe as in all available space is an infinite vast of nothingness which the universe consisting of all matter is expanding into.

A finite amount is continuously expanding into an infinite space, so no, the universe is not finite by any meaningful definition.

>>8302649
>The universe as in all available space is an infinite vast of nothingness
How do you know?

Do not give pop sci answers.

>>8302660

Define "know"

No one can claim to be 100% certain that the space into which the universe/subset of space consisting of all current matter, is expanding into is infinite. It just fits best with our current understanding of physics.

Hubble's law and associated measurements and experiments largely back up this theory. Consider the fact that the vast majority of galaxies we observe exhibit redshift (with exceptions such as andromeda which is still expanding away from the center of the universe (the universe of observable matter/the center of all matter), but is expanding faster to us than we are from it, and so we observe blueshift), they are expanding away from us. This at least confirms the theory that everything is expanding.

Given this, doesn't it intuitively make more sense to you that there is no arbitrary boundary of space, than there being one? Why would there be an arbitrary boundary within vast nothingness?