Physicists confront the neutron lifetime puzzle

To solve a long-standing puzzle about how long a neutron can “live” outside an atomic nucleus, physicists entertained a wild but testable theory positing the existence of a right-handed version of our left-handed universe.

New IceCube detection proves 60-year-old theory

Normally, electron antineutrino would zip right through the Earth at the speed of light as if it weren’t even there. But this particle just so happened to smash into an electron deep inside the South Pole’s glacial ice, and was caught by the IceCube Neutrino Observatory. This enabled IceCube to make the first ever detection of a Glashow resonance event, a phenomenon predicted 60 years ago by Nobel laureate physicist Sheldon Glashow.