Theory and experiments suggest that the mysterious fractures that appear when a brittle material is compressed result from a hidden buildup of internal tension.

Random tangles of vortex lines have been observed untangling in an ultracold gas.

Close encounters between kaons and deuterons help to elucidate quantum chromodynamics in a challenging mass range.

Using sheets of light to corral waves of ultracold atoms, researchers have created an experimental platform for studying the event horizons of black holes.

Metals typically rely on electrons to transport heat, but one has been identified that conducts heat efficiently through both electrons and phonons.