The first ever molecule made from matter-antimatter pairs has been created by physicists in the US. Dubbed “dipositronium”, it contains two electrons and two positrons that are bound together in much ...

I spent last week at the 49th annual meeting of the Division of Atomic, Molecular, and Optical Physics of the American Physical Society, with about 1200 other physicists who study the way atoms, ...

This image depicts the radium atom’s pear-shaped nucleus of protons and neutrons in the center, surrounded by a cloud of electrons (yellow), and an electron (yellow ball with arrow) that has a ...

Making a connection: An artist's impression of a Rydberg atom bonded to an ion. (Courtesy: Danyel Cavazos) A novel type of molecule that is longer than some kinds of bacteria has been detected by ...