Despite their size, the robots can navigate liquids, respond to their environment and operate without external control.

Scientists have built microscopic, light-powered robots that can think, swim, and operate independently at the scale of ...

Measuring just 200 by 300 by 50 micrometers — smaller than a grain of salt and roughly the size of a single-celled paramecium ...

These are the smallest programmable autonomous robots that I have seen,” said Kevin Chen, an MIT roboticist who wasn’t ...