Where is the centre of the universe? It is commonly understood that the universe is expanding. From where?

Question

Given what we do know about stellar dynamics and the expansion of the universe, does it not follow that we can extrpolate where it all started? Or have our math models, or info to calculate, not advanced to that state yet.

Answer 1

At the center of the universe is a giant black hole, or the remains of a singularity, or God. It is all a matter of perspective and personal beliefs.

The Big Bang theory states that all was created from a singularity, a dimensionless point of energy that burst forth in a huge explosion. As the energy dissipated it cooled and became particles which came together to create atoms, then clouds of atoms became stars, galaxies, planets and us. But did all of the energy expend itself from that singularity? Or does some of it still exist there?

Astronomers now believe that every galaxy is formed around black holes. Extropolating, that would suggest that all matter is formed around a massive black hole.

And the Creationists believe that everything was created by God and that of course God is the center of everything including the universe.

But now string theory in its latest form suggests that the universe was created by the collision of two extra-dimensional membranes. And that the comic book / science fiction concept of multiple universes may actually exist. So maybe Robert Heinlein was right all along. I wonder where the Gay Deceiver is parked now?

Take your pick.

Answer 2

There is no centre. The "Big Bang" took place about 14 billion years ago, and the universe continues to expand. There is no centre for the expansion, as it is the same everywhere. The universe is not expanding from a centre, but it is all expanding at the same rate in all places.

Answer 3

The 'Big Bang' is not like an explosion, expanding from a central origen. Every point is seen to be moving away from every other point. So that, no matter where you are in the universe, it will look like YOU are at the center, with every star and galaxy moving away from you.

It is often likened to a balloon being blown up with air, where the stars and galaxies reside on the surface of the balloon. As it is blown up, there is no one point from which all the objects are moving away from, but everything is simply increasing in the distance between it and every other object all at the same time.

Answer 4

To observe a "scientist's exercise" (in asininity) concerning the answer to this question, visit http://www.exploratorium.edu/origins/hubble/tools/center.html

From http://www.citebase.org/cgi-bin/citations?id=oai:arXiv.org:astro-ph/0109109, we have a much more thorough answer, including the following excerpt:

The validity of Hubble's law defies the determination of the center of the big bang expansion, even if it exists. Every point in the expanding universe looks like the center from which the rest of the universe flies away.

In this article, the author shows that the distribution of apparently circular galaxies is not uniform in the sky and that there exists a special direction in the universe in our neighborhood.

The data is consistent with the assumption that the tidal force due to the mass distribution around the universe center causes the deformation of galactic shapes depending on its orientation and location relative to the center and our galaxy.

The location of the center is estimated to be at a distance ~0.88/h Gpc in the direction of l=135 +/- 30 degrrs and b = -35 +/- 20 degrees in galactic coordinates (alpha = 01h 36m, delta = +26d 50m in equatorial J2000.0 or in the direction of the Constellation Pisces).

Further study of the deformation of galaxies such as triaxial galaxies and non-axisymmetric spiral galaxies can be utilized for a more accurate determination of the universe center.

(there are additional links at that site)

Answer 5

The universe expands in non actual techniques. Time, and the advent of alternative aspects together with easy. advance isn't purely actual... it is likewise metaphysical. that's why a fifteen year long test can practice some new progression some easy years way... yet there are nonetheless the comparable style of parking areas on monday morning.

Answer 6

There is no center. The universe looks the same from any point in space. We do not know for sure whether the universe is infinite ( If you keep going it goes on forever ) or finite( If you keep going you eventually get back where you started).

Answer 7

What is the universe? Does it really exist?