Story perspectives

World's Tiniest Robots: Autonomous Innovation at 0.2mm

12/16/2025

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Summary

Story summary

Researchers at the University of Pennsylvania have developed the world's smallest fully programmable autonomous robots, measuring about 0.2 by 0.3 by 0.05 millimeters.
The robots sense their environment, make decisions, and operate autonomously for months.
They use a propulsion system that generates an electric field to move through water and coordinate group motion.
They are powered by ultra-miniaturized University of Michigan computers, run on minimal energy, and include solar cells.

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Story summary

Researchers at the University of Pennsylvania have developed the world's smallest fully programmable autonomous robots, measuring about 0.2 by 0.3 by 0.05 millimeters.
The robots sense their environment, make decisions, and operate autonomously for months.
They use a propulsion system that generates an electric field to move through water and coordinate group motion.
They are powered by ultra-miniaturized University of Michigan computers, run on minimal energy, and include solar cells.