Exploring the Shape of the Universe: Spherical or Cylindrical?

In summary, the shape of the universe is still a topic of debate and speculation. Based on general relativity, it could be spherical or cylindrical. Some argue that it may be static and not expanding or contracting. The Big Bang theory is currently the most widely accepted explanation for the origin of the universe, and it suggests a spherical shape. However, others propose a cylindrical shape and question the compatibility of general relativity with the Big Bang model. Ultimately, the universe may not have a defined shape and may be best understood as a higher-dimensional manifold.
  • #1
Einstiensqd
What is the shape of the universe? Judging by general relativity, the shape of the universe could be roughly spherical, and also roughly cylindrical. Another interesting thing is that the universe actually could be static and un-expanding or contracting.
Imagine the universe like the earth, spherical. Now, imagine the galaxies as tectonic plates. As they go farther away, we can't see their light as well, but in turn, the universe does not need to expand.
 
Space news on Phys.org
  • #2
When the singularity (from the Big Bang) evaporated, then one can easily hypothesize that it may have evaporated in a spherical manner.

On the other hand, the shape could very well be a cylinderical shape. From the point of the BB, the increase in entropy, aka time, would only be in one direction.
 
  • #3
I'm not a big fan of the Big Bang. To many complications with it, and what about general relativity in it??!
 
  • #4
The universe does not have a shape. Many people visualize it as a sphere embedded in a higher-dimensional manifold, but this is not necessary, and is probably misleading.

The Big Bang theory is supported by a vast preponderance of evidence. Currently, there is no other theory compatible with the results of observational cosmology experiments like WMAP.

I have no idea why you think general relativity is incompatible with the Big Bang model, but you're wrong.

- Warren
 
  • #5
well i know little about this but i would think a sphere because the center of teh universe is suposed to have extream gravity or as Homer Simpson siad it oculd be doghnut shaped
 

1. What is the shape of the universe?

The shape of the universe is a highly debated topic among scientists. Currently, the two most widely accepted theories are the spherical and cylindrical models.

2. How is the shape of the universe determined?

The shape of the universe is determined through various methods, including observations of the cosmic microwave background radiation, measurements of the expansion rate of the universe, and calculations based on the distribution of matter and energy in the universe.

3. What evidence supports the spherical model of the universe?

The spherical model of the universe is supported by observations of the cosmic microwave background radiation, which show a uniform distribution of temperature throughout the universe. This supports the idea that the universe is expanding equally in all directions, as would be expected in a spherical shape.

4. What evidence supports the cylindrical model of the universe?

The cylindrical model of the universe is supported by the observation of large-scale structures in the universe, such as galaxy clusters and superclusters, which appear to be arranged in a cylindrical shape. Additionally, the distribution of matter and energy in the universe also supports this model.

5. How does the shape of the universe impact our understanding of the universe?

The shape of the universe has a significant impact on our understanding of the universe, as it can provide insights into its origin, evolution, and ultimate fate. It also has implications for the structure and behavior of cosmic objects such as galaxies and black holes.

Similar threads

  • Cosmology
Replies
11
Views
1K
  • Cosmology
Replies
15
Views
1K
  • Cosmology
Replies
5
Views
1K
Replies
9
Views
1K
Replies
2
Views
961
Replies
3
Views
1K
Replies
32
Views
3K
Replies
25
Views
1K
Replies
13
Views
2K
  • Cosmology
Replies
2
Views
4K
Back
Top