Since all of the planets, and moons, and stars seem to have a spherical shape, it is possible that the universe may be a sphere.
Flat model
There really is no shape of the universe. It is like air, it really has no shape. But maybe many, many light years away it reaches to the end of the universe and it has shape. But right now our technology cannot tell, or go that far.
No
The universe's shape is unknown, therefore we cannot tell where the earth is. but compared the the universe the earth is a tiny tiny speck
big bang explosion
the universe is always changing
The atomic sphere.
1.the shape of the universe 2.the rate of acceleration or de-acceleration
The universe contains countless galaxies, think of the universe as a galaxy of galaxies.
The universe contains countless galaxies, think of the universe as a galaxy of galaxies.
Yes, galaxies can be any size and shape.
It is the idea that the universe will continue to expand forever. By contrast, the closed theory states that gravity will eventually cause the universe to shrink. (I think) In addition to the above. Essentially it is the theory that the universe has no boundary and is not closed in on itself in any way. The shape of the universe in this case must be either "flat" or "curved" to some extent, but not curved enough to form a cylinder, sphere, ellipsoid or torus.