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1. scitechdaily.com › the-big-bang-how-couldThe Big Bang: How Could Something Come From Nothing?

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   Jan 19, 2022 · Many-worlds quantum theory gives a new twist on conformal cyclic cosmology, though not one that Penrose agrees with. Our Big Bang might be the rebirth of one single quantum multiverse, containing infinitely many different universes all occurring together. Everything possible happens – then it happens again and again and again.

2. science.nasa.gov › exoplanets › what-is-the-universeWhat is the Universe? - NASA Science

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   The universe contains all the energy and matter there is. Much of the observable matter in the universe takes the form of individual atoms of hydrogen, which is the simplest atomic element, made of only a proton and an electron (if the atom also contains a neutron, it is instead called deuterium).

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     Origins of the Universe 101 | National Geographic

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     Hypotheses and Theories Explaining The Origin of the Universe | Earth and Life Science

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     The origins of the universe, explained

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4. www.sciencealert.com › we-could-have-a-new-way-toOur Universe Is Finely Tuned For Life, And There's an ...

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   Nov 22, 2021 · Physically speaking, our Universe seems uncannily perfect. It stands to reason that if it wasn't, life as we know it – and planets, atoms, everything else really – wouldn't exist. Now, three physicists from the US, France, and Korea have put forward a new explanation for why life, the Universe, and everything in it has had such a prime ...

5. science.nasa.gov › universe › the-big-bangThe Big Bang - NASA Science

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   The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown. Learn more.

6. writings.stephenwolfram.com › 2021 › 04Why Does the Universe Exist? Some Perspectives from Our ...

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   Apr 28, 2021 · The underlying Universe might be deterministic in the sense that some structure will eventually arise, and yet, thanks to computational irreducibility, we cannot predict what is going to happen. Therefore, we might as well act as if our choices are our own, and live our lives accordingly.

7. www.smithsonianmag.com › science-nature › whatWhat Is the Universe? Real Physics Has Some Mind-Bending ...

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   Sep 15, 2014 · Science says the universe could be a hologram, a computer program, a black hole or a bubble—and there are ways to check

8. People also ask

   Why does the universe exist?

   • The main scientific result that we’re using is that arbitrary abstraction, if played out completely enough, in a sense inevitably reads like physics to observers like us. So the universe—with the physics we perceive in it—exists because it’s formally inevitable that it does. Where Does Everything Come From?

   Why Does the Universe Exist? Some Perspectives from Our Physics P…

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   What if the universe wasn't perfect?

   • Physically speaking, our Universe seems uncannily perfect. It stands to reason that if it wasn't, life as we know it – and planets, atoms, everything else really – wouldn't exist.

   Our Universe Is Finely Tuned For Life, And There's an Explanation For

   www.sciencealert.com/we-could-have-a-new-way-to-explain-why-our-universe-is-as-finely-tuned-for-life-as-it-is

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   How does the universe arise from a physical perspective?

   • The whole universe thus arises from something that – viewed from another physical perspective – is as close as one can get to nothing at all. But that nothing is still a kind of something. It is still a physical universe, however empty. How can the very same state be a cold, empty universe from one perspective and a hot dense universe from another?

   The Big Bang: How Could Something Come From Nothing? - SciTechDaily

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   Why is cosmology important?

   • The origin, evolution, and nature of the universe have fascinated and confounded humankind for centuries. New ideas and major discoveries made during the 20th century transformed cosmology – the term for the way we conceptualize and study the universe – although much remains unknown. What is Dark Energy? Inside our accelerating, expanding Universe

   The Big Bang - NASA Science

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   Did the Big Bang start the universe?

   • As far as advocates of the big bang are concerned, it did. But that leaves us with the inscrutable singularity that started everything off. Alternatively, according to theories of so-called cyclic cosmologies, the universe is immortal and is going through endless bounces.

   The Universe Began with a Bang, Not a Bounce, New Studies Find

   www.scientificamerican.com/article/the-universe-began-with-a-bang-not-a-bounce-new-studies-find/

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   How does our perception of the universe differ from ours?

   • And so its perception of the universe and its laws might be quite different from ours. It might, for example, have none of our familiar notions of space or time, but instead describe the universe in terms of features of the configurations of atoms of space and their causal connections which we are not set up to access or reason about.

   Why Does the Universe Exist? Some Perspectives from Our Physics P…

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9. www.scientificamerican.com › article › the-universeThe Universe Began with a Bang, Not a Bounce, New Studies ...

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   May 24, 2023 · How did the universe start? Did we begin with a big bang, or was there a bounce? Might the cosmos evolve in a cycle of expansion and collapse, over and over for all eternity?