A curious question sparked a cosmic deep dive into why light never tires—even after 25 million years on the move. Reading time 4 minutes My telescope, set up for astrophotography in my light-polluted ...

In a groundbreaking new study, researchers from the University of Rostock and the University of Birmingham have made a surprising discovery that challenges the long-held understanding of time and ...

Supermassive cosmic objects, such as black holes, are very difficult to study directly, but researchers can construct useful analogues in the laboratory using quantum effects. For example, researchers ...

Photonic space-time crystals are materials that could increase the performance and efficiency of wireless communication or laser technologies. They feature a periodic arrangement of special materials ...

Researchers have developed a blueprint for weaving hopfions—complex, knot-like light structures—into repeating spacetime crystals. By exploiting two-color beams, they can generate ordered chains and ...

Photonics researchers from Tampere University, Finland, and Kastler-Brossel Laboratory, France, have demonstrated how self-imaging of light, a phenomenon known for nearly two centuries, can be applied ...