InSight mole
The robotic arm on NASA's InSight Mars lander is pinning a heat flow probe, or mole, to one side of a hole it's created in the surface, increasing friction enough for the mole to burrow deeper.

A probe on NASA’s InSight Mars lander that has been stuck for months is moving deeper into the surface again thanks to an assist from the lander’s robotic arm.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...