what is the proof of the universe inflating and is there any type of theory going against the...?

Question

universe inflating theory? like, we cannot suceessfuly say that the universe is expanding if the galaxies are moving apart from each other ? and please also tell me what is supersymmetry and axissymmetry?

Answer 1

The proof is red-shift.

As things recede from each other at a high fraction of c (speed of light), the waves stretch out; visible light takes on a higher red content. The SPEED of light remains the same, but the frequency changes.

Conversely, when things approach each other, they blue-shift; the light becomes more blue.

Answer 2

Inflation was invented in the 1970s to solve two key problems in cosmology.
The horizon problem--everywhere the Universe looks the same, there is uniformity of the background radiation. There has not been enough time since the Big Bang for light to travel across the Universe and back. So how do the opposite horizons "know" how to keep in step with each other?


The flatness problem-- this is the puzzle that the space-time of the Universe is very nearly flat, which means that the Universe sits just on the dividing line between eternal expansion and eventual recollapse.

read ths article you will get mathematical analysis
kicp.uchicago.edu/~dhuterer/Papers/fate.pdf

Answer 3

Because galaxies are moving apart from each other is why we know that the Universe is expanding. If you draw a bunch of galaxies on a balloon and then blow it up, each drawn galaxy will start moving away from every other galaxy. The hard part to think about is that our universe is an analog to the surface of the balloon and not the whole balloon. If you live on the surface of that balloon, you have no knowledge of the inside of the balloon or the outside of the balloon that you are expanding into. It is a "hyperspace". The 2-d surface of the balloon is expanding into a 3 dimensional hyperspace. So the idea is that we might be expanding into a 4 dimensional hyperspace. We do not perceive this hyperspace, but we are expanding into it and because of this expansion from the Big Bang, every galaxy in our universe moves apart from every other one.