Its crazy just how small a space we actually occupy in the known universe. This video is another attempt to show us just how big the universe is. It uses the usually technique of speed up by orders of magnitude as it moves away from the Earth. Somehow that doesn’t quite give me a real sense of scope. It was well made and I liked the bit where it shows that we have only actually mapped part of the sky. Hope you enjoy.
I also wanted to find a single image that gave some idea of how matter is clumped together into super clusters with massive gaps of mostly empty space. This image shows how the distribution of energy has changed as the universe evolves.
This illustration shows snapshots from a simulation representing the growth of cosmic structure when the universe was 0.9 billion, 3.2 billion and 13.7 billion years old, which it is now, evolving from a smooth state to one containing a vast amount of structure. (MPE/V.Springel)
Some basic facts:
Size of the universe? About 150Billion Light Years
Age of the Universe? 13.7 Billion Years old (roughly)
Observable Universe? 93 Billion Light Years
The Universe if FLAT (I need to give you a link for this one or you won’t believe me)
My comment is that if the universe is 150 Billion light years in size then for it to have expanded to this size then surely it must be at least 75 Billion years old to have travelled that distance from a centre point originated big bang. That is at the speed of light and the universe is not still expanding at the speed of light is it ?
My point being that the Math does not make sense.