In the fast-growing field of data annotation, workers in a small city in south India train A.I. to improve how it performs ...

The Trump administration is advancing plans to repeal the 2001 Roadless Rule, which protects 45 million acres of public lands ...

Polarization-gradient metasurface–enabled two-photon interference achieves nanoscale displacement metrology with classical-level precision using ~3% photons, enabling high-speed, low-noise, ...