Also, I just read something that said according to the Bible the universe is infinite. Where does it say this and does science support it?
The Bible does not say that - at least not in such clear terms.
Recent scientists (within my lifetime) once thought the universe was infinite (but almost entirely empty). Modern physicists have speculated that the universe is neither infinite nor of fixed size, but “space” grows as matter moves into it. Thus, since the matter of the universe (galaxies, etc) is ever expanding (and will never contract), the volume of space is ever expanding.
This is a matter of considerable interest and controversy among current physicists. Nobody today, however, believes that the universe is of finite and unchanging volume. This was the view of classical (Newtonian) physicists, but it is not believed within the scientific community today. The majority of physicists today think that the volume of space expands as matter moves into it, but there is no overall consensus.
I happen to concur with the majority opinion (though my agreement carries no academic weight). Infinity does not occur within the natural world, EXCEPT (as some believe) for the volume of space. I reject the idea of infinity ANYWHERE in the natural world. I therefore believe that the volume of space is finite, but not fixed. It’s like a balloon with perfect elasticity, which can start small but grow indefinitely.
But this view requires the idea of a boundary of space, though it is one that we can never cross - at least in our current form - as we try to cross the boundary, the boundary keeps moving with us. It’s like trying to escape from a perfectly elastic balloon - it cannot be done. If we exert the slightest pressure on the wall, the wall expands before us.
This, of course, presents the ultimate question:
what is on the other side of the boundary? If we COULD cross it, what would we find?
Could LIGHT cross the boundary? Remember, the boundary expands as matter moves into it. But is light matter? Yes, and no.
There was, at one time, great debate over whether light was made of particles or waves. We could construct an experimental apparatus easily enough to show it was particles (the famous two-slit experiment). But it took us longer to construct an apparatus that demonstrated it was waves (though we predicted this). If light is particles, it cannot cross the barrier. But, if it is waves, this may be possible (it still has mass-energy, and the eggheads are still trying to figure that out).
The problem is that it is impossible to demonstrate BOTH the particle and wave properties of light in the SAME EXPERIMENT. If you test for particles, you will get 100% particles. If you test for waves, you will get 100% waves. But you can NEVER test for both in the SAME test (we have conclusively proven that this is an impossibility). If you were in a spaceship, very close to the boundary of space, and you shined a light, would the light cross the boundary?
That’s an interesting problem, because this is essentially an experiment that tests both properties at once. If it crosses the boundary, then light is waves and NOT matter. If it expands the boundary, it is matter and NOT waves. OR, it is possible that the boundary can be expanded by EITHER matter OR waves. This is the type of question that keeps physicists up at night.
BUT, light is part of the physical realm. Can a purely spiritual “thing” cross the boundary without interacting with it? Physicists don’t think about that at night (well, most don’t) because they can’t study supernatural (ie, beyond natural) “things” with natural tests (which is the only type of test we can construct). But it is an interesting question, theologically speaking.