NASA's InSight lander heat probe resumes working(1/3)

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. (Photo/IC)

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. (Photo/IC)

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. (Photo/IC)