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How Neutrinos Could Solve The Three Greatest Open Questions In Physics

12 Dec 2017, 15:01 UTC
How Neutrinos Could Solve The Three Greatest Open Questions In Physics
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A detailed look at the Universe reveals that it’s made of matter and not antimatter, that dark matter and dark energy are required, and that we don’t know the origin of any of these mysteries. Image credit: Chris Blake and Sam Moorfield.Dark matter, dark energy, and why there’s more matter than antimatter? There’s an experiment to explore if neutrinos could solve all three.When you take a look at the Universe in great detail, a few facts jump out at you that might be surprising. All the stars, galaxies, gas, and plasma out there are made of matter and not antimatter, even though the laws of nature appear symmetric between the two. In order to form the structures we see on the largest scales, we require a huge amount of dark matter: about five times as much as all the normal matter we possess. And to explain how the expansion rate has changed over time, we need a mysterious form of energy inherent to space itself that’s twice as important (as far as energy is concerned) as all the other forms combined: dark energy. These three puzzles may be the greatest cosmological problems for the 21st century, and yet the one ...

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