NEUTRINOS ARE SHRINKING, AND THAT'S A GOOD THING FOR PHYSICS

Summary from the TLDR newsletter

A new study published in the journal Science sets a new upper limit for the mass of a neutrino. Neutrinos are prolific across the cosmos - they are created virtually anytime atomic nuclei snap together or rip apart. They carry no electric charge and are notoriously difficult to detect. Learning more about neutrinos will help cosmologists fill in more knowledge about the universe, including how galaxies clustered together and what influences the expansion of the cosmos. Uncovering the exact values of the mass of neutrinos could lead to new physics.