Curiosity's "visual odometry" software measures terrain features -- such as rocks, rock shadows and patterns in the rover tracks -- to determine the precise distance between drive steps.

FORBES: Curiosity Leaves Its Mark

The stories are so full of anguish and black comedy that they obliterate any distance between the interviewees and the audience, even when the subjects are shot in shadows or from odd angles to protect their identities.

NEWYORKER: Trembling Before G-d