Physicists at the world's largest atom smasher have detected a mysterious, primordial particle from the dawn of time. About 100 of the short-lived "X" particles — so named because of their unknown ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. As atoms and subatomic particles swirl and crash into each other ...

In the first millionths of a second after the Big Bang, the universe was a roiling, trillion-degree plasma of quarks and gluons — elementary particles that briefly glommed together in countless ...

Researchers at CERN’s Large Hadron Collider in Switzerland recently detected a vanishingly rare particle they believe was around at the very beginning of the universe. The particle—called an X ...

The detection is detailed in a new study published in the journal Physical Review Letters. Immediately following the Big Bang, the universe was an extremely hot, concentrated plasma of elementary ...