Jeffrey Kluger

Journalist; Editor and Writer at TIME MAGAZINE. Author of 8 books, including APOLLO 13.

Leland Melvin

Engineer, Former NASA Astronaut & Former NFL Wide Receiver

Mikko Hypponen

Computer Security Expert; Chief Research Officer at WithSecure & Principal Research Advisor at F-Secure

If It's Smart, It's Vulnerable

Rebecca MacKinnon

Founding Director of Ranking Digital Rights

Anna Dietrich

‎Entrepreneur; Consultant; Speaker; COO & Co-Founder of Terrafugia, Inc.

José M. Hernández

Former NASA Astronaut, Engineer, Former Candidate for U.S. Congress & Author

Ben Goldacre

Physician; Best-Selling Academic & Science Writer

B. Gentry Lee

Chief Engineer for Solar System Exploration, Jet Propulsion Laboratory

Alex Steffen

Author of "Carbon Zero: Imagining Cities That Can Save the Planet"

Colonel Mike Mullane

Career Astronaut & Author; Member of International Space Hall of Fame

Justin Hall-Tipping

The Energy Evangelist, Justin Hall-Tipping works on nano-energy startups -- mastering the electron to create power.

Ellen Stofan

Under Secretary for Science & Research at the Smithsonian; Former Chief Scientist at NASA

Steven Squyres

Scientific Investigator, NASA

Yves Rossy

Military-Trained Pilot & Aviation Enthusiast

Todd Kuiken

Biomedical Engineering Manager at the Rehabilitation Institute of Chicago

James Melton

Author, Pilot & Leadership Coach

June Scobee Rodgers

Author, Speaker, Educator; Widow of Challenger Space Shuttle Commander Dick Scobee

Kip Thorne

Nobel Prize Winning Theoretical Physicist & Author, "The Science of Interstellar"