On Wednesday, December 27, 2017 at 8:57:46 PM UTC, Brent wrote: > > Even as the universe expands there will still be a part of it which was > close enough to us (in the distant past) that it is still within our > visible universe. > > Brent >
CMIIAW, but our galaxy formed a long time AFTER the time of recombination, so it's not obvious why the CMB doesn't wink out like the distant galaxies which are not in our vicinity, like Andromeda. AG > > On 12/27/2017 12:17 PM, agrays...@gmail.com <javascript:> wrote: > > Since galaxies were formed after the CMB came into existence about 380,000 > years after the BB, and those far away will wink out as they cross the > cosmic horizon, why doesn't the CMB also wink out? I know the latter is > reddening as the cosmos expands, and is ubiquitous, but when the question > was posed to me last night at a meeting in Pasadena with former JPL > colleagues, I didn't have a good answer. TIA, AG > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to everything-li...@googlegroups.com <javascript:>. > To post to this group, send email to everyth...@googlegroups.com > <javascript:>. > Visit this group at https://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
