Re: Localized Big Bang

Greetings and Salutations:

On May 19, 9:55 am, "George Dishman" <geo...@xxxxxxxxxxxxxxxxx> wrote:
Since everything is moving away from a central point, another universe
colliding with ours would (by definition) have objects moving from
*that* central expansion point.

No! There is no "central point" in current cosmological
models, our universe is probably infinite in size and by
measurement the section we can observe appears homogenous
and isotropic, the same (on average) everywhere.

WRT Cosmic Microwave Background (CMB), correct? And homogeneous "in
general", as when you look at the COBE map some areas are "darker" and
some "lighter". This would be expected because there are clusters
that show up as lighter.

Before thinking you understand these ideas, please look
at Ned Wight's tutorial:
http://www.astro.ucla.edu/~wright/cosmolog.htm

I hadn't fully grasped what significance that source had.

He was one of the team that ran the COBE mission whose
members recently received the Nobel prize.
HTH
George

Yes it did. Thank you.

But from reading that paper, the "big bang" is not disputed, correct?
It is just that the universe has a homogeneous 2.725 K background
radiation.

I may have missed something in the above reference, but as far as I
understand with the "big bang" space continues to expand along with
matter. So how can the Universe be infinite if space continues to
expand? Or is Universe != Space?

Thanks,
Ken

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