This simulation shows the cosmic web of dark matter and the large-scale structure it forms. Normal matter is present, but is only 1/6th of the total matter. Meanwhile, matter itself only composes about 2/3rds of the entire Universe, with dark energy making up the rest. The unobservable Universe must extend for at least ~400 times the extent of the visible Universe we can see, meaning that our 92 billion light-year diameter Universe is less than one-64-millionth of the minimum volume of what’s out there. (Credit: The Millennium Simulation, V. Springel et al.)

Here on Earth, human beings exist on the scale of meters, with the average human being a little less than two meters in height. Our…

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