Guest: Andrew Mishkin.

Sojourner's diminutive size didn't stop it from captivating millions of people when it beamed back the first-ever photos from the red terrain of Mars. But the Pathfinder mission's story goes far back beyond that first contact. NASA engineer Andrew Mishkin joins us today on Focus to give us the details on the massive effort made by the world's best minds to land an artificial intelligence on the surface of Mars.