That is incorrect. The expansion of the universe means that the distance between unbound objects increases over time. It does not mean that space is being filled up by anything. A key thing to note here is that expansion, as explained by General Relativity, is a geometrical effect, not a physical effect. What I mean is that while a balloon has to be filled up with air to expand, a physical effect, the expansion of the universe is a result of the geometry of the universe.okay, you do know that as something expqnd space is created, and has to be filled up by something, when i say void, i refer to this space wich has to eventually be replaced by something
Not really, but it depends on exactly what you mean by 'multiverse'. Galaxies can move outside of our observable universe and never have a chance to interact with us again, so you could almost think of them as existing in a separate universe, but this is simply a result of the accelerating expansion of space. They are still within our actual universe an will remain so forever.Okay, i assume you know about multiverse, there should be a boundry, that bounds everthing in our universe. If the universe is not expanding and its contants are being spread out, dont you think they would by now have spread outside of the universe?
Other types of multiverse theories are different and I couldn't begin to compare all of them.
The phrases 'contents of the universe are moving apart' and 'universe expanding' mean exactly the same thing. As the distance between unbound objects grows over time, the universe expands. There is no physical barrier that is moving into empty space or into some void or multiverse sea or anything like that. (Not according to the standard model of cosmology at least)I Think it is,logical to say that if realy the contants of the universe are moving apart and the universe is not expanding, then a few galaxies would be at that edge or outside
What are you measuring? If I were to measure the average density of space it would continue to decrease forever. If I were to measure the average distance between objects, it would increase over time. We can't measure 'the vacuum' because the vacuum is an absence of all matter. We have to measure real objects that exist within this vacuum, such as hydrogen and helium gas.Space is vaccum, does this vaccum expand? Where does it come from? if we measure it to be 15 today, and tomorrow it is 20 where did the extra 5 come from???
There is no 'big bang'. The big bang was not an event. The big bang theory is a description of the evolution of the universe, starting from its extremely dense, extremely hot state right at the beginning of the standard model and running to the present day, where the universe has expanded and cooled over the course of 13.7 billion years. The common use of 'big bang' refers to an imaginary explosion which is where everything supposedly came from. This understanding is wrong. Nothing in the Big Bang Theory says anything about how our universe was created. It only explains that the universe started off hot and dense and expanded, cooling off over time. It serves as a framework in which to place many other theoretical predictions, such as the calculated abundance of the primordial elements and the evolution of stellar objects, in order to explain our current understanding of the structure and history of the universe as a whole. It does not suggest any ultimate origin for the contents of the universe.No. Space i a property of big bang, remember reason why space is said to be expanding is due to.the observation that after it banged everything flew apart, but flew apart into what?
In this it is uniquely similar to the theory of biological evolution. Biological evolution explain how organisms changed over the course of billions of years, growing from extremely simple single-celled organisms into the complex multi-celluar lifeforms we see today. The theory contains many, many other sub-theories that describe, in detail, all the different processes that lifeforms use/undergo. But, like how the Big Bang Theory doesn't explain the ultimate origin of the universe, evolution does not explain the ultimate origin of life. That is a separate theory known as abiogenesis.