I Finding Remnants of the Big Bang

  • I
  • Thread starter Thread starter ErikC
  • Start date Start date
  • Tags Tags
    Big bang
ErikC
I'm assuming for some time after the Big Bang we may have been close enough to another universe to observe it. Would all signature of such observation be lost due to the heat in the early universe or the length of time past? Could anything observed be a remnant of this?
 
Space news on Phys.org
Hi ErikC, welcome to PF!

ErikC said:
I'm assuming for some time after the Big Bang we may have been close enough to another universe to observe it.
If you mean being in contact with another patch of the universe that is currently unobservable, then that was never the case. The particle horizon soon after big bang was smaller than it is today.
 
ErikC said:
I'm assuming for some time after the Big Bang we may have been close enough to another universe to observe it.

This looks like personal speculation, which is off limits for discussion at PF. If you can find a mainstream reference (textbook or peer-reviewed paper) that describes a hypothesis like this, then we would have some basis for discussion.

Thread closed.
 
https://en.wikipedia.org/wiki/Recombination_(cosmology) Was a matter density right after the decoupling low enough to consider the vacuum as the actual vacuum, and not the medium through which the light propagates with the speed lower than ##({\epsilon_0\mu_0})^{-1/2}##? I'm asking this in context of the calculation of the observable universe radius, where the time integral of the inverse of the scale factor is multiplied by the constant speed of light ##c##.
The formal paper is here. The Rutgers University news has published a story about an image being closely examined at their New Brunswick campus. Here is an excerpt: Computer modeling of the gravitational lens by Keeton and Eid showed that the four visible foreground galaxies causing the gravitational bending couldn’t explain the details of the five-image pattern. Only with the addition of a large, invisible mass, in this case, a dark matter halo, could the model match the observations...
Hi, I’m pretty new to cosmology and I’m trying to get my head around the Big Bang and the potential infinite extent of the universe as a whole. There’s lots of misleading info out there but this forum and a few others have helped me and I just wanted to check I have the right idea. The Big Bang was the creation of space and time. At this instant t=0 space was infinite in size but the scale factor was zero. I’m picturing it (hopefully correctly) like an excel spreadsheet with infinite...
Back
Top