Dark matter is thought to exist everywhere, wrapping around galaxies and helping to shape the largest things in the universe.

Gravitational waves could be responsible for the production of dark matter during the early phases of our universe's ...

For the first time, physicists have watched a beam of positronium, a short‑lived atom made of an electron and its antimatter twin, behave like a rippling quantum wave instead of a stream of tiny ...

Tim Kovachy is in the Department of Physics and Astronomy and at the Center for Fundamental Physics, Northwestern University, Evanston, Illinois 60208, USA. Quantum mechanics predicts that single ...