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Ask Ethan: How can we comprehend the scale of the Universe? | by Ethan Siegel | Begins With A Bang! | Jan, 2023

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This simulation reveals the cosmic internet of darkish matter and the large-scale construction it varieties. Regular matter is current, however is just one/sixth of the whole matter. In the meantime, matter itself solely composes about 2/3rds of the whole Universe, with darkish vitality making up the remainder. The unobservable Universe should prolong for not less than ~400 occasions the extent of the seen Universe we will see, that means that our 92 billion light-year diameter Universe is lower than one-64-millionth of the minimal quantity of what’s on the market. (Credit score: The Millennium Simulation, V. Springel et al.)

Right here on Earth, human beings exist on the dimensions of meters, with the typical human being rather less than two meters in peak. Our…

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