A new measurement finds the universe's teensiest particles weigh no more than one-millionth the mass of an electron.

Our understanding of how the physical world works – from the tiniest subatomic particle to the largest galaxy cluster – has advanced rapidly in recent decades. As The Infinite Monkey Cage ...

A report published late last month outlines MATHUSLA, a particle detector named for the longest-lived person in the Bible.

CERN scientists at the world’s largest particle accelerator have made a unique antimatter breakthrough, which they believe ...