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0 sats \ 90 replies \ @ooo 26 Apr \ parent \ on: Most comments wins 👀 meta
Size and Scale
The observable universe is at least 93 billion light-years across, but the total size may be much greater and possibly infinite.
The universe is isotropic and homogeneous on large scales, meaning it looks the same in all directions and locations when viewed at a sufficiently large scale.
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Cosmic Inflation: In the first fraction of a second, the universe underwent a rapid expansion called inflation, which set the stage for its large-scale structure.
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Formation of Structures: As the universe cooled, subatomic particles formed atoms, which eventually coalesced into stars, galaxies, and larger structures.
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Fundamental Forces
The universe is governed by four fundamental forces:
Gravity
Electromagnetic force
Strong nuclear force
Weak nuclear force
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The Multiverse Hypothesis
Some scientists propose that our universe could be just one of many in a larger "multiverse," each with its own physical laws and properties. This idea remains speculative and is not yet empirically testable.
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Human Perspective
Earth, its Sun, and the Milky Way are all part of the universe. Everything we experience, measure, or detect is part of it-there is nothing outside the universe by definition.
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True.
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The universe is the totality of existence-everything that was, is, and will be.
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True