Scientists have inched a step closer to solving an enduring mystery in physics — why the universe contains any matter at all — thanks to a newly combined analysis from two of the world's leading ...

When fundamental particles are heavier or lighter than expected, physicists' understanding of the universe can tip into the ...

Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help ...

Decades of weird experimental results appeared to support the existence of the sterile neutrino, a hypothetical particle that ...

NEW YORK (AP) — Final results from a long-running U.S.-based experiment announced Tuesday show a tiny particle continues to act strangely -- but that's still good news for the laws of physics as we ...

NPR's Ayesha Rascoe speaks to Esra Barlas Yücel, a researcher at University of Illinois at Urbana-Champaign, about Fermilab's most precise measurements of the muon particle's magnetic wobble. It's ...

This image provided by the Fermi National Accelerator Laboratory shows the ring-shaped track that scientists used to study tiny particles called muons, July 20, 2023 in Batavia, Ill. (Ryan ...