Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing that idea is challenging.

Columnist Natalie Wolchover checks in with particle physicists more than a decade after the field entered a profound crisis.

Scientists have found “strange quarks” that originated as virtual particles that sprang from nothing Quantum physics paints a strange picture of the world, one filled with spooky connections, ...

The Pauli exclusion principle is a cornerstone of the Standard Model of particle physics and is essential for the structure and stability of matter. Now an international collaboration of physicists ...