Particles and antiparticles have opposite charges, and they annihilate if they interact, turning into pure energy. In the Big Bang, an equal amount of matter and antimatter formed, but some process ...

In 1932, Carl David Anderson’s groundbreaking discovery of antimatter confirmed the existence of antiparticles predicted by ...

Immediately, it not only expands, but cools. In a fraction of a second, these unstable particles and antiparticles vanish, leaving a Universe favoring matter over antimatter. Here's how it happens.

Image credit: E. Siegel. CP is a combination of C symmetry, where you replace particles with antiparticles, and P symmetry, where you reflect whatever happens in a mirror.

Finding neutrinoless double beta decay may be more likely below about 0.05 electron volts, where neutrino mass has been predicted to lie if the particles are their own antiparticles.

It Could Help Explain Why the Universe Exists. Darren Orf April 24, 2025 Scientists Found One of the Heaviest Antiparticles sakkmesterke - Getty Images ...

Strange antiparticles pop out of RHIC’s quark-gluon plasma Brookhaven's Relativistic Heavy Ion Collider was designed to produce quark- … ...

"Antimatter is just the coolest, most mysterious stuff you can imagine," Jeffrey Hangst, the particle physicist whose 30 years of work trapping antiparticles led to the discovery, told BBC.

About 13.7 billion years ago, the big bang created a big mess of matter that eventually gave rise to life, the universe, and everything. Now a new material may help scientists understand why.

“If a future experiment should demonstrate that antiparticles have a negative gravitational mass, it will deliver a mortal blow to the entire relativistic theory of gravity by disproving the ...