Find the universe point of origin based on location of cellestrella bodies?

Click For Summary

Discussion Overview

The discussion revolves around the possibility of identifying a point of origin for the universe based on the locations of celestial bodies. Participants explore theoretical implications, the nature of the Big Bang, and the expansion of the universe.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question whether it is possible to find a universe point of origin based on the distribution of celestial bodies.
  • One participant argues that everything in the universe began at the same location during the Big Bang and that the universe appears homogeneous, making it seem as if every point is the center.
  • Another participant suggests that if the universe was created by an explosion, it might be possible to analyze the distances and speeds of surrounding galaxies to work backwards to a point of origin.
  • A different viewpoint clarifies that the Big Bang was not an explosion into space but rather the expansion of space itself, indicating there is no center or edge to the universe.
  • Participants discuss the implications of the Hubble Constant, noting that the rate of expansion varies with distance, leading to the perception of galaxies moving away at different speeds.
  • One participant humorously suggests that every individual could be considered a point of origin, emphasizing the universality of existence.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the universe's origin and expansion. There is no consensus on whether a point of origin can be identified based on celestial body locations, and multiple competing perspectives remain unresolved.

Contextual Notes

Participants highlight the complexity of the universe's expansion and the implications of its potential finiteness or infiniteness, but do not resolve these issues. The discussion includes assumptions about the nature of the Big Bang and the distribution of matter in the universe.

whatzzupboy
Messages
60
Reaction score
0
Can we find...

Is it possible for us to find the universe point of origin based on location of cellestrella bodies? If so how? If not why?
 
Astronomy news on Phys.org
No. Everything in the universe started at the same 'location' [big bang] then moved apart. No matter where you are in the universe now, it appears you are still at the center. Why? Because everything you look at appears to be moving away and the recession velocity solely depends on it's distance, not direction. The universe is also homongenous. Matter is not preferentially distributed in any direction.
 
But if it was created by an explosion then why can't we take surronding glaxie's distanc from us and the speed there movie as well as the direction and work backwards? Oh and why do we think of our universe as infinite space if it is only going to collaps sooner or later. And at what speed is our universe expanding at?
 
The Big Bang was not an explosion of stuff into space. It was the rapid expansion of all space. As such, there is no center or edge to 3D space. Imagine an infinite grid. Now make each grid square/cube twice as big. In that one instant (let’s call it a second), grid point “A” saw its neighboring grid point (point B) take 1 step away (1 step in 1 second)…but a grid point located 2 away (point C) took 2 steps in that same (2 steps in 1 second)…and so on.

Two key concepts to understand:

(1) The farther away someone at point A looks, the faster things appear to be expanding (even though the overall grid has a constant expansion).
A-B-C (start…B is 1 dash away from A and C is 2 dashes away)
A - -B - -C (one expansion step…now B is 2 away and C is 4 away…twice as far in the same second)

(2) Each grid point can see itself as stationary and see all other points expanding away from it.
(point A sees point C moving 4 dashes away, but C sees point A moving 4 dashes away)

If the Big Bang was an explosion of stuff into empty space, then yes, you would expect to see a preferred direction (in this case, our imaginary grid would not have parallel lines…they would converge back to 1 point). But what we actually see is no preferred direction of expansion.

The rate of expansion is expressed by the Hubble Constant...something around 70 kilometers per second per megaparsec...so something 1 megaparsec away from us appears to be receeding 70 kps from us and something 2 megaparsecs away appears to be receeding 140 kps from us, etc.

If the universe is indeed infinite, then it won't collapse. It would expand forever. If the universe was finite, then gravity would pull it all back into a Big Crunch. Still lots of ongoing research to determine whether the universe is infinite or not.
 
Last edited:
whatzzupboy said:
Is it possible for us to find the universe point of origin based on location of cellestrella bodies? If so how? If not why?
Another way of saying what Chronos and Phobos have admirably said is "your heart, whatzzupboy, is exactly the point of origin of the universe; you are truly special." Now before you get too high on this thought, remember that it's equally true of all hearts in the universe, whether they be homo sap. hearts or the heart at the core of every one of the 10>80 baryons.
 

Similar threads

High School Is the barycentre of the Pluto - Charon system also the L1 point?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Does Spacetime rotate like a vortex?
  • · Replies 6 ·
Replies
6
Views
1K
Graduate N-Body inputs from Keplerian Orbits
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Early Universe massive Black Holes question
  • · Replies 10 ·
Replies
10
Views
3K
High School Predicting frequency of Earthlike planets and systems
  • · Replies 11 ·
Replies
11
Views
4K
Graduate Could gamma-ray bursts have an intragalactic origin?
  • · Replies 29 ·
Replies
29
Views
2K
Graduate Did scientists just find that the Universe has finite angular momentum?
  • · Replies 12 ·
Replies
12
Views
5K
Undergrad Could the Universe Be Much Older Than 13.8 Billion Years?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Penrose: CCC predicts BICEP2 B-modes due to void magnetic fields, correlated to CMB Hawking Points
  • · Replies 6 ·
Replies
6
Views
4K
Undergrad Is there an experimental proof that an Earth/Moon barycenter exists?
  • · Replies 51 ·
2
Replies
51
Views
8K