Welcome to Cleared for Takeoff! In our inaugural episode, we talk to NASA's Dr. PK, director of the Aeronautics Research Institute (and former NASA engineer of the year) about air-taxis, or as we say in "aviation-speak," Urban Air Mobility. We talk through what this new form of air transport is all about, and what challenges exist to bring it to fruition. We also get into a rousing discussion about how air taxis may transform where we live, how we go to work, and what cities will even look like in the future.

With hosts: Mark Roboff, Martin Whitfield, Cory Laflin, and Ravi Rajamani.