
Observable universe - Wikipedia
The observable universe is a spherical region of the universe consisting of all matter that can be observed from Earth; the electromagnetic radiation from these objects has had time to reach …
Universe Map
Universe Map is your definitive guide to galaxies, stars, and cosmic structures — mapped, analyzed, and optimized for discovery and research.
Observable universe | Definition, Size, Description, & Facts
observable universe, the region of space that humans can actually or theoretically observe with the aid of technology.
How can the visible universe be 46 billion light-years in radius …
Jun 12, 2024 · Calculations show that this expansion would cause the current radius of the universe to be about 46 billion light-years. The expansion of the universe explains how it can …
The Universe within 14 billion Light Years - The Visible Universe
This map attempts to show the entire visible Universe. The galaxies in the universe tend to collect into vast sheets and superclusters of galaxies surrounding large voids giving the universe a …
Universe - NASA Science
Sep 8, 2025 · Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more. Concentrations of matter with gravity so powerful not even light can …
Observable Universe | Mysteries, Scale & Cosmology Explained
May 28, 2024 · The observable universe represents the cosmic expanse that can be seen from Earth, extending approximately 46 billion light years in every direction. This vastness contains …
ViewSpace
ViewSpace videos tell the stories of the planets, stars, galaxies, and universe, giving viewers the opportunity to experience space and Earth as seen with satellites and telescopes.
What is the Observable Universe? (with pictures) - AllTheScience
May 21, 2024 · The observable universe, also known as the Hubble volume, is the region of space that it is theoretically possible for us to observe, small enough that light from the furthest …
ESA - Observing the Universe in visible light
All the stars visible to the naked eye are part of our galaxy, the Milky Way. However, thousands of millions of other galaxies stretch throughout space and these are mostly studied using visible …