Neutrino mass measurement techniques represent a cornerstone of modern particle physics and cosmology. Given the elusive nature of neutrinos, experimental approaches have evolved to measure their ...

Neutrinos are tiny particles that barely interact with anything. Trillions of them pass through your body every second, yet you’ll never notice. They have no electric charge and barely any mass. Still ...

DURHAM, N.C. -- One of the tiniest building blocks of the universe has a weigh-in problem, and Ashutosh Kotwal is determined to get to the bottom of it. For nearly 30 years, the Duke physicist has led ...

There’s something amiss with a mass. A new measurement of the mass of an elementary particle, the W boson, has defied expectations. The result hints at a possible flaw in physicists’ otherwise ...

A disassembled charge-detection mass spectrometry ion trap. A disassembled charge detection mass spectrometry ion trap Credit: Gwendolyn Jarrold At the University of Oxford, Justin Benesch studies ...

An actively feeding black hole surrounds itself with a disk of hot gas and dust that flickers like a campfire. Astronomers have now found that monitoring changes in those flickers can reveal something ...

This graphic shows how microlensing was used to measure the mass of a white dwarf star. The dwarf, called LAWD 37, is a burned-out star in the center of this Hubble Space Telescope image. Credits: ...