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16 de mai. de 2023 · Explore the vast expanse of the universe with this website that shows how generations of explorers have taken us farther and farther. Learn about the history, science, and discoveries of the cosmos.
Learn about the size, expansion, and possible end of the Universe, as well as the difference between the observable and the whole Universe. Find out why the Universe seems infinite and how our perception affects our understanding of it.
Let's start by saying the Universe is big. When we look in any direction, the furthest visible regions of the Universe are estimated to be around 46 billion light years away.
28 de jan. de 2022 · How big is the universe? Based on what we can observe, the universe appears to be almost 28 billion light-years across. However, it is far larger than that.
26 de set. de 2023 · The universe is at least 93 billion light-years in diameter, and possibly infinite. Learn how astronomers measure cosmic distances and why we can't travel to nearby stars or galaxies.
Today the universe has expanded into an age and size that is physically only in parts observable as the observable universe, which is approximately 93 billion light-years in diameter at the present day, while the spatial size, if any, of the entire universe is unknown.
How Big is the Universe? The actual spatial size of the universe is unknown. However, by measuring the observable universe, the current size of the universe is approximately 95 billion light-years in diameter.
