Most of the laws of nature treat particles and antiparticles equally, but stars and planets are made of particles, or matter, and not antiparticles, or antimatter. That asymmetry, which favors matter ...
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In Less Than a Second After the Big Bang, the Universe Could Have Created Black Holes and Cannibal Stars
Imagine a universe that barely exists—just fractions of a second old, too young to look anything like the cosmos we know ...
Understanding why we live in a matter-dominated universe demands that scientists recreate the quark-gluon plasma that existed one millionth of a second after the Big Bang. A Large Ion Collider ...
Matter and antimatter should have completely wiped each other out eons ago, leaving the Universe a very empty place. Obviously that didn't happen. Experiments at the Large Hadron Collider (LHC) may ...
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Scientists at CERN discover how matter defeated antimatter and gave birth to our universe
They observe for the first time the decay of baryons, particles that make up the majority of the matter in the observable universe. After the Big Bang, matter and antimatter were created in equal ...
Scientists studying the tracks of particles streaming from six billion collisions of atomic nuclei at the Relativistic Heavy Ion Collider (RHIC) -- an 'atom smasher' that recreates the conditions of ...
A complete survey of all the particle and antiparticle activity that goes on during the Sun’s 11-year cycle has found previously unknown ways these particles behave. Cosmic rays coming from outside ...
The experiment at CERN produced pairs of electron and positron beams, propagating into an ambient plasma. The international ...
In the alphabet-soup world of subatomic physics, only one letter was missing. The equations of quantum theory had indicated the existence of 17 pairs of basic “building blocks”—particles and ...
Around 150 researchers gathered at CERN from 1 to 5 September 2025, for the annual meeting of the Invisibles network.
An experiment more than 10 years in the making has delivered its first glimpse of the hurricane of particles whirring inside subatomic particles called neutrons, laying the groundwork to solve a ...
An artistic representation of antihyperhydrogen-4 — an antimatter hypernucleus made of an antiproton, two antineutrons, and an antilambda particle — created in a collision of two gold nuclei (left).
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