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

Researchers have created microscopic robots so small they’re barely visible, yet smart enough to sense, decide, and move completely on their own. Powered by light and equipped with tiny computers, the ...

Scientists have created robots smaller than a grain of salt that can sense their surroundings, make decisions, and move ...

Researchers built autonomous robots the size of salt grains—with onboard computers, sensors, and motors that think and swim ...