you should try to find that out rather than sending me a pm trying to insinuate that it is the bible
there are other older sources containing cosmological information

/homework go now and chase after it

Lmao papyrus was my favorite word back in 6th grade

What scientific experiments were done by the authors of the bible? What page do I turn to for the hypotheses, procedures, data and conclusions of these experiments?



I think space is an accurate description. It's simply volume without mass, providing a matrix in which matter and energy can interact. The observable universe consists of stuff we can detect, like light and matter. So beyond what we can see, it looks empty, and thus it's "space" to us, until we can detect something. Think of it this way. Right before the big bang, all matter was condensed in one spot. Outside of this singularity, it was empty, so I think it's fair to call it space. Then BANG, matter erupts outward. Outside this expanding sphere, it's empty, it's still space. But now there's space inside the sphere too, in all the empty spots between all the subatomic particles. Then atoms form, and gravity starts making matter clump together, making the spaces between clumps bigger and bigger, until the expanding sphere is so large that it's mostly empty space. The empty space inside is the same as the empty space outside. The only difference is the distribution of matter, the presence of which defines our universe's boundaries. I'm not sure if this answers your question

as usual you are wrong, the thing about science is that it is objective

school is not the only way to learn things, for example you are on the internet with all the people telling you how dumb you are it must be enlightening

Oh god what my question has turned into...

So azrad's picture depicts my question pretty well.
If the yellow and blue sphere collide what happens?
You stated that the red sphere is also expanding so its not possible. But By chance can't they?
And ultimately can't there be multiple aliens observable universes to increase these odds?
Of course it's speculation.

Someone here said that since our observable universe is mostly empty space that if they were to collide then nothing would happen. But I can't see this being logical. Ultimately since we are "limited" by the light traveling out, which is a massive amount of energy, if this energy collides with equal less or even more energy can't this mean huge things? Catastrophic events?

The yellow and blue spheres are just calculated volumes of mostly empty space, not like billiard balls that can collide. In fact if there is an alien civilization inside our own galaxy, their sphere would largely overlap with ours.

No because the rate of expansion between 2 points is determined by the distance between the 2 points. So 2 points that are far apart separate faster than 2 points where are not far apart. This is why you can't feel this expansion inside your own body; the distance between any too parts just isn't great enough to overcome the other forces acting on your parts. In fact it has no real effect between points inside the galaxy. But it does produce a meaningful force on intergalactic scales (between galaxies outside the local group).

If you think about the above, no amount of distinct observable spheres can increase the odds of what you want to happen. These spheres have been mathematically constructed in such a way that if they do not overlap now, then they can never overlap in the future because they are separating at a speed greater than the speed of light. That is what determines the size of the sphere, so the whole calculation has been cooked up to make this a truism.