The most accepted belief about the universe is that it is approximately 93 billion light years in diameter. This is based on the latest measurements and observations from scientific research.
The size of the universe is determined through various methods such as measuring the cosmic microwave background radiation, analyzing the redshift of distant galaxies, and using mathematical models based on the observed expansion of the universe.
While some theories suggest that the universe could be infinite, the most accepted belief is that the universe is finite and expanding. This is supported by observations and measurements of the cosmic microwave background radiation and the overall structure of the universe.
The shape of the universe is still a topic of debate among scientists. Some theories suggest that it is flat, while others propose a curved or even a multi-dimensional shape. Further research and observations are needed to reach a consensus on the shape of the universe.
The observable universe is the portion of the universe that we can see and measure. It is estimated to be about 46.5 billion light years in radius. This is significantly smaller than the estimated size of the entire universe, suggesting that there is much more of the universe that we have yet to discover.