Terrestrial tests help to ensure that the AstroAnt's teeny-tiny wheels keep turning when it reaches the moon.

Before researchers send a project like AstroAnt to the lunar surface, they have to test it somewhere like the moon.

This miniaturized swarm robot can ride atop a lunar rover and collect data related to its health.

Lava tubes—massive underground tunnels formed by ancient lava flows—offer a glimpse into potential human habitats under the lunar surface.

Meet HexSense, a sensor node designed to be deployed ballistically—in other words, shot out of a cannon—and automatically right itself.