Scientists at the University of Illinois Urbana-Champaign have confirmed the existence of a massless particle, long theorized ...

Add Yahoo as a preferred source to see more of our stories on Google. Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that ...

The magnum opus of particle physics is far from complete, requiring physicists to devise many alternatives—some weirder than ...

For various, typically historical reasons, even the best physicists claim things that sound egregious to modern observers. That doesn’t necessarily mean these ideas are completely useless—if anything, ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.