Physicists have been chasing one of the universe’s strangest mysteries—neutrinos, nearly invisible particles that zip through ...

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 ...

Astronomers have long searched for ways to detectdark matter, the elusive substance believed to make up most of the ...

A new research effort involving simulations of Milky-Way-like galaxies shows that the mysterious, unexplained extra gamma ...

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 ...

We know the Earth’s inner core is largely solid, which sets a ceiling on its temperature, and in turn, how much heat dark ...

It’s around you, it’s a part of you, and scientists are still trying to figure it out. Antimatter: It’s the opposite of the matter we’re used to; it’s mysteriously elusive; and when it gets too close ...

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 ...

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 ...

Deep under a mountain in Italy, researchers continue to push the boundaries of science with an experiment that could rewrite ...

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).