A snapshot of a computer simulation showing how energy density changes over time in the collision of a lead ion with a photon emitted by another lead ion. The world’s largest and most powerful ...

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When light scatters off light, a photon can briefly turn into a pair of particles, such as an electron and a positron. These interact and annihilate, turning back into a photon. But if heavier virtual ...

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The particles that are in an atom: protons, neutrons and electrons The particles that are in protons and neutrons: quarks The four fundamental forces: gravity, electromagnetism, the strong force and ...

Does dark matter interact with itself? The answer may lie in vast clusters of colliding galaxies. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

About 80 percent of the universe’s mass is thought to consist of dark matter. And yet, little is known about the composition and structure of the particles that make up dark matter, presenting ...

(Nanowerk News) The world’s largest and most powerful particle accelerator may be producing the world’s tiniest droplets of liquid, right under scientists’ noses. Researchers supported by the ...