Dark matter may have started as light-like particles that abruptly became heavy—a cosmic twist rooted in spin and ...

In the vast ocean of existence, a silent dance pulses through every particle, every atom, every breath. This dance is ancient ...

In the 20th century, cosmic rays helped scientists discover antimatter and the muon—the first evidence for subatomic particles beyond the proton, neutron and electron. Cosmic rays can also tell us ...

All visitors to the Laboratory age 16 and over must bring a photo ID. Cosmic rays, which are made up of subatomic and atomic particles ranging from electrons and protons to iron nuclei, bombard the ...