i.e. spans the gamut of very young to very old.zhermes said:Both with spiral galaxies like our own, and large ellipticals, and giant clusters, etc.
The shape of the universe is still a topic of debate among scientists. Some theories suggest that the universe is flat, while others propose a spherical or saddle-shaped geometry. However, current data from the cosmic microwave background and distant galaxy observations indicate that the universe is most likely flat.
The universe is vast and contains billions of galaxies, each with billions of stars. The observable universe, which is the portion of the universe we can see, appears to have a fairly uniform distribution of matter on a large scale. It also has a web-like structure, with filaments of galaxies connected by vast voids.
This is a difficult question to answer definitively. Our current understanding of the universe suggests that it is either infinite or incredibly large but still finite. However, we cannot observe the entire universe, so it is impossible to say for sure if it is truly infinite.
The main components of the universe are dark matter and dark energy, which make up about 95% of the total mass-energy of the universe. The remaining 5% is made up of ordinary matter, such as galaxies, stars, and planets.
The current estimated age of the universe is approximately 13.8 billion years. This age is determined by measuring the cosmic microwave background radiation, which is the leftover heat from the Big Bang, and using this data to calculate the expansion rate of the universe.