Tara Ruttley

Chief Scientist at Blue Origin; Former NASA Scientist & Aquanaut

Dr Tara Ruttley - A Career in Space

Richard Wilkinson

Studied the Social Effects of Income Inequality and How Social Forces Affect Health

Jeremy Gilley

Actor, Filmmaker & Founder of the Peace One Day Non-Profit

Mary Ellen Weber

Former NASA Astronaut & Legislative Affairs Liaison at NASA; Founder of Stellar Strategies

Amy Lockwood

Deputy Director of Stanford's Center for Innovation in Global Health

Harald Haas

Communications Technology Innovator & Chair of Mobile Communications at the University of Edinburgh

Deborah Diaz

Chief Technology Officer for IT at NASA

Jerry L. Ross

Former astronaut & Author of "Spacewalker: My Journey in Space and Faith as NASA's Record-Setting Frequent Flyer"

Jae Rhim Lee

Artist and TED Fellow Jae Rhim Lee Re-Imagines the Relationships Between the Body and the World

Pavan Sukhdev

President, WWF International; Environmental Economist

Dr. Phil Plait

Blogger for Discover Magazine at Bad Astronomy, where he deconstructs misconceptions and explores the wonder of the Universe.

Sunita Williams

NASA Astronaut; Formerly Held the Records for Total Spacewalks & Most Spacewalk Time by a Woman

Alison Gopnik

Professor & World Leader in Children's Learning and Development

Rakesh Sharma

Former Indian Air Force Pilot & Astronaut; First Indian in Space

Daniel Tani

NASA Astronaut & Engineer

Adam G. Riess

Nobel Prize-Winning Astrophysicist

Jonathan Trent

Former Director of Offshore Membrane Enclosures for Growing Algae; Founder of UpCycle Systems

David Wolf

Astronaut, Medical Doctor, Engineer, Scientist, Inventor & Aerobatic Pilot

Nathalie Miebach

The Intersection of Art and Science

Mark Polansky

Former NASA Astronaut, Military Fighter & Test Pilot