A Franco-Spanish physics team has found that a hypothetical massive spin-3/2 particle cannot be consistently described without also including gravity. Using standard positivity bounds in a weakly ...

A team affiliated with IPhT (CEA/CNRS) in France and the Universitat Autonoma de Barcelona argues that, within a standard effective-field-theory setup, the existence of a massive spin-3/2 particle ...

An artist's impression of the quantum experiment. (Courtesy: University of Southampton) The first technique capable of measuring the pull of gravity on a particle just microns in diameter could aid ...

Physics is this close to understanding the entire universe. And what lives in this gap? Many physicists think it’s the elusive graviton—the quantum particle of gravity—whose discovery will finally ...

New ‘gravity mapping’ hardware could lead to new submarine navigation, ground-penetrating geological sensors, and aerial ...