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1. home.cern › science › physicsDark matter - CERN

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   Dark matter candidates arise frequently in theories that suggest physics beyond the Standard Model, such as supersymmetry and extra dimensions. One theory suggests the existence of a “Hidden Valley”, a parallel world made of dark matter having very little in common with matter we know.

2. www.scientificamerican.com › article › the-universeThe Universe Is Not Locally Real, and the Physics Nobel Prize ...

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   Oct 6, 2022 · One of the more unsettling discoveries in the past half a century is that the universe is not locally real. In this context, “real” means that objects have definite properties...

   • Author: Daniel Garisto

3. www.newscientist.com › article › mg24532670-800-whatWhat you experience may not exist. Inside the strange truth ...

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   Jan 29, 2020 · No, because your brain edits them out. “A lot of what our senses are doing is something like data compression: simplifying, in order to be able to function,” says Mazviita Chirimuuta at the...

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5. www.bbc.co.uk › news › science-environment-68631692Cern: Scientists search for mysterious ghost particles - BBC

   www.bbc.co.uk › news › science-environment-68631692

   Mar 25, 2024 · Now scientists think they've found a way to prove whether or not they exist. Europe's centre for particle research, Cern, has approved an experiment designed to find evidence for them.

6. www.livescience.com › does-reality-exist-quantumDoes reality exist when we're not looking? - Live Science

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   Jan 4, 2023 · What does the universe really look like? Does everything exist but we are simply unaware of it, or does it not really have a defined state until measurement takes place?

7. theconversation.com › do-aliens-exist-we-askedDo aliens exist? We asked five experts - The Conversation

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   Jun 13, 2021 · Even if aliens exist, are intelligent like humans and interested in making contact with us, what are the chances they’ll be close enough for us to hear them screaming their presence into the...

8. People also ask

   Is there a 'Hidden Valley'?

   • One theory suggests the existence of a “Hidden Valley”, a parallel world made of dark matter having very little in common with matter we know. If one of these theories proved to be true, it could help scientists gain a better understanding of the composition of our universe and, in particular, how galaxies hold together.

   Dark matter - CERN

   home.cern/science/physics/dark-matter

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   Is the universe locally real?

   • One of the more unsettling discoveries in the past half a century is that the universe is not locally real. In this context, “real” means that objects have definite properties independent of observation—an apple can be red even when no one is looking.

   The Universe Is Not Locally Real, and the Physics Nobel Prize Winners

   www.scientificamerican.com/article/the-universe-is-not-locally-real-and-the-physics-nobel-prize-winners-proved-it/

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   Could mysterious 'ghost' particles help us understand the universe?

   • Some physicists have long suspected that mysterious 'ghost' particles in the world around us could greatly advance our understanding of the true nature of the Universe. Now scientists think they've found a way to prove whether or not they exist.

   Cern: Scientists search for mysterious ghost particles - BBC News

   www.bbc.co.uk/news/science-environment-68631692

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   Do humans see all reality?

   • Humans, unlike bees, don’t normally see ultraviolet light; we can’t sense Earth’s magnetic field, unlike turtles, worms and wolves; are deaf to high and low pitch noises that other animals can hear; and have a relatively weak sense of smell. “Everybody knows that we don’t see all of reality. I say we see none of it”

   What you experience may not exist. Inside the strange truth of reality

   www.newscientist.com/article/mg24532670-800-what-you-experience-may-not-exist-inside-the-strange-truth-of-reality/

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   Does what you experience exist?

   • What you experience may not exist. Inside the strange truth of reality What our senses allow us to experience may not reflect what actually exists. It may be a creation of our own consciousness, or a computer simulation designed by superintelligent beings By Donna Lu, Alison George, Daniel Cossins and Layal Liverpool

   What you experience may not exist. Inside the strange truth of reality

   www.newscientist.com/article/mg24532670-800-what-you-experience-may-not-exist-inside-the-strange-truth-of-reality/

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   Is nature a real thing?

   • Under quantum mechanics, nature is not locally real: particles may lack properties such as spin up or spin down prior to measurement, and they seem to talk to one another no matter the distance. (Because the outcomes of measurements are random, these correlations cannot be used for faster-than-light communication.)

   The Universe Is Not Locally Real, and the Physics Nobel Prize Winners

   www.scientificamerican.com/article/the-universe-is-not-locally-real-and-the-physics-nobel-prize-winners-proved-it/

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9. www.livescience.com › 38234-is-reality-real-or-notReality Check: Is Our Universe Real? | Live Science

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   Jul 17, 2013 · For example, gravity is the weakest of the four fundamental forces, but in other dimensions, it could be just as strong. "Things would be very different in this hidden reality," Freeman says.