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 ...

New cosmic ray theory: Researchers suggest ultraheavy atomic nuclei may explain the origins of the highest-energy cosmic rays ever detected. Why it matters: Ultraheavy nuclei could survive longer ...

Physicists know that their elegant theoretical description of forces and particles – the Standard Model – must be incomplete, ...

A team of theoretical physicists has proposed a new particle that could act as a bridge between ordinary matter and dark matter, existing in a warped fifth dimension beyond space and time. Their model ...

Recent findings from research we have been carrying out at the Large Hadron Collider (LHC) at Cern in Geneva suggest that we might be closing in on signs of undiscovered physics. If confirmed, these ...

According to our current understanding of the universe, equal amounts of matter and antimatter should have been produced in the Big Bang, then both annihilated. However, the universe is dominated by ...