Scientists have taken a major step toward solving a long-standing mystery in particle physics, by finding no sign of the ...

Columbia professors contributed to new research that seeks to understand an anomaly that has puzzled particle physics for ...

Deep underground in southern China, there is a 20,000-ton tank of liquid that can detect neutrinos. Named JUNO, the ...

Using a precisely aligned pair of laser beams, scientists can now hold a single aerosol particle in place and monitor how it ...

Is light made of waves, or particles? This fundamental question has dogged scientists for decades, because light seems to be both. However, until now, experiments have revealed light to act either ...

Light behaves both as a particle and as a wave. Since the days of Einstein, scientists have been trying to directly observe both of these aspects of light at the same time. Now, scientists have ...

The constancy of the speed of light is a pillar of modern physics, but questions persist about its absolute universality.

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be ...

Neutrinos are sometimes described as "ghost particles" because they can pass through space, the Earth's atmosphere and the Earth itself with almost no interaction with normal matter. This makes ...