Weird ‘Time Crystals’ Are Made Visible at Last

Physicists at the University of Colorado Boulder have created visible time crystals using light-illuminated liquid crystals. These structures show repeating patterns over time, maintaining rhythm for hours despite changing conditions. Researchers triggered molecular twisting by shining light on liquid-crystal films between glass plates, creating observable ripples. This breakthrough represents the first macroscopic time crystal, as previous examples existed only at microscopic scales. These visible time crystals could potentially be used in anti-counterfeit devices, creating unique, hard-to-replicate patterns.