Yang Chen

In 1181, Chinese astronomers spotted a flash — likely the merger of two white dwarfs. Modern observations of the Pa 30 nebula barely pick up a radio signal. This means the explosion’s energy was extremely low, or particle acceleration works differently. The discovery forces us to rethink the nature

Scientists have learned to create spy defects in diamond: swapping a carbon atom for nitrogen yields a sensor that responds to magnetic fields. For the first time, they've observed titanium under nearly two million atmospheres expel magnetic fields—a sure sign of superconductivity. This technology p