Earth’s surface may be full of dark matter – new scientist

When dark matter descends on a planet or star, most of it sinks into the core. But if it ever gets back to normal, there may be more of this mysterious stuff beneath the surface.

Dark matter may be trapped in massive celestial bodies, and some may be closer to the surface than we previously thought. So maybe on Earth 10 trillion dark matter particles In every cubic centimeter of the Earth’s crust, physicists think Rebecca Leanne from Stanford University in California and Jury Smirnov from the University of Liverpool, United Kingdom.

Dark matter is a hypothetical form of matter that does not seem to interact with light. But it attracts ordinary matter through gravity. It is possible for dark matter particles to occasionally collide with ordinary matter particles.

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Clouds of dark matter

Lean and Smirnov calculated how these collisions would split dark matter into celestial bodies. Our galaxy, like most galaxies, is embedded in clouds of dark matter. As a result, dark matter continues to flow into every planet and star.

Lean and Smirnov Some researchers think that this dark matter doesn’t just sink into the cores of planets and stars. ‘If you are a dark matter particle, gravity pulls you towards the center of the star or planet. But when you go down, you’re colliding with all that stuff on the way to its core,” says Lean. “Even if you give dark matter a lot of time, some of it will still come to the surface because of those collisions.”

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The surface of the sun

Researchers have calculated that in the Sun this amounts to 100 trillion dark matter particles per cubic centimeter of the solar surface. Maybe even more – it depends on how strongly dark matter interacts with normal matter.

Current dark matter detectors are not designed to search for this entangled dark matter. It is expected to move more slowly than dark matter from space, so it carries less energy and is therefore more difficult to detect.

However, a higher concentration near the Earth’s surface will help future experiments. “There’s a lot of dark matter on Earth’s surface that makes it easier to find,” Lean says.

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