Morning Overview on MSN

Scientists see a positronium beam as a quantum matter wave for the 1st time

For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter ...

First observation of positronium matter-wave diffraction with a graphene grating

First experimental observation of matter-wave diffraction in a short-lived electronpositron atom using a graphene-based ...