Everything you see around you—your phone, your cat, the Earth, the stars—makes up just 15% of the mass in the universe. The remaining 85% is a ghost. We can’t see it, touch it, or sense it in any way.
Physicists have unveiled a new way to simulate a mysterious form of dark matter that can collide with itself but not with normal matter. This self-interacting dark matter may trigger a dramatic ...
About 80% of the universe's mass is thought to consist of dark matter. Yet, little is known about the composition and structure of the particles that make up dark matter, presenting physicists with ...
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