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- Jul 18, 2016
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That's one of the things that is up for discussion.
Was there any form of 'space' before the formation of the Universe.
If there was then there is the question of where this space was.
And then there is the business of 'Dark Matter' that apparently is forming all the time and may be driving the expansion. And, of course, if one adds matter of any sort to a volume the density stays the same if the volume is getting bigger pro rata.
Anyway, I would suggest watching the BBC Four Horizon program 'How big is the Universe ?'.
At minute 50 (or thereabouts) there is an explanation of how it was decided that the Universe is flat.
I misremembered it as using two stars for a baseline. It was two points of equal temperature on the Cosmic Microwave Background.
Well worth a watch it you can find it. Possibly on BBC Iplayer.
INT21.
Was there any form of 'space' before the formation of the Universe.
If there was then there is the question of where this space was.
And then there is the business of 'Dark Matter' that apparently is forming all the time and may be driving the expansion. And, of course, if one adds matter of any sort to a volume the density stays the same if the volume is getting bigger pro rata.
Anyway, I would suggest watching the BBC Four Horizon program 'How big is the Universe ?'.
At minute 50 (or thereabouts) there is an explanation of how it was decided that the Universe is flat.
I misremembered it as using two stars for a baseline. It was two points of equal temperature on the Cosmic Microwave Background.
Well worth a watch it you can find it. Possibly on BBC Iplayer.
INT21.