In a remarkable breakthrough, scientists have found tangible proof that time can be altered—at least at a microscopic level. Researchers from Darmstadt University in Germany have observed a phenomenon that suggests time reversal occurs in certain materials, challenging our conventional understanding of time’s unidirectional flow.
Physicists Till Bohmer and Thomas Blochowicz detailed their findings in a study titled Time Reversibility During the Ageing of Materials, published in Nature Physics.

Unlike rigid molecular structures, glass molecules remain in constant flux, subtly shifting and rearranging in ways that suggest a form of microscopic time reversal. To investigate this, the team used lasers to analyze glass formations, uncovering unexpected molecular reconfigurations.
“The minuscule fluctuations in the molecules had to be documented using an ultra-sensitive video camera. You can’t just watch the molecules jiggle around,” explained Professor Thomas Blochowicz.
Despite these fascinating results, the researchers acknowledge a major limitation: they cannot definitively determine whether these structural changes indicate a true reversal of past states or simply a dynamic reorganization of matter.