Skip to main content

Questions tagged [cosmological-horizon]

Questions about the size of the observable universe.

4 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2 votes
0 answers
75 views

Entanglement in- and outside the observable universe

Consider the limit of the observable universe. Assume we received and analysed a photon coming from a distant region close to the edge of the observable universe. If we believed - based on energy ...
Mikael Jensen's user avatar
2 votes
0 answers
33 views

Is it possible to infer information about the structure of the universe beyond the observable one?

Is it possible to infer information about the structure of the universe beyond the observable one, by observing its effects on the parts we can see? Can for example gravity from sources we cannot see ...
Woody's user avatar
  • 1,040
2 votes
0 answers
185 views

Clarifications about distances in cosmology

I would like to get clarifications about some usual notions of distances in cosmology. First, is the comoving distance the current distance of objects whose light has been reached by us now, i.e. ...
user avatar
1 vote
0 answers
56 views

Probability of collision of another bubble universe with our universe

This is rephrased from a previous question and expanding on it. Considering the model of an "inflating" universe which extends infinitely in past (and possibly future) time, constantly creating new ...
user1097111's user avatar