ROB MANNING has worked at NASA and Caltech's Jet Propulsion Laboratory for more than 30 years. He now leads the engineering for the Mars Program Office and is chief engineer on a project to develop technologies for landing even larger robotic vehicles on Mars with hopes of eventually landing future ...

ROB MANNING has worked at NASA and Caltech's Jet Propulsion Laboratory for more than 30 years. He now leads the engineering for the Mars Program Office and is chief engineer on a project to develop technologies for landing even larger robotic vehicles on Mars with hopes of eventually landing future astronauts and scientists there. WILLIAM L. SIMON is the author of 30 books including iCon: Steve Jobs and Ghost in the Wires, both New York Times and international bestsellers.