An unexpected discovery surprised a scientist: nanometer-sized diamond particles, which were intended for a completely different purpose, shone brightly in a magnetic resonance imaging experiment -- ...

A single-step high-pressure industrial process replaces complex irradiation methods, producing quantum-grade nanodiamonds with stable spins and long lifetimes for scalable sensing and imaging.

Magnetic fields thread through galaxies, stretch across cosmic voids, and shape the behavior of charged particles over millions of light-years. Yet their origin remains one of the most stubborn ...