John Holdren

Professor of Environmental Policy & Director of the Program on Science, Technology, and Public Policy at the Harvard Kennedy School of Government

Peggy Whitson

Director at Axiom Space; NASA's Most Experienced Female Astronaut; Biochemistry Researcher

Peggy Whitson, American with most time in space, set to return to ...

Boyan Slat

Inventor, Entrepreneur & Founder of The Ocean Cleanup

Garrett Reisman

Astronaut, Professor of Astronautical Engineering at USC & Senior Advisor at SpaceX

Scott W. Tinker

Director of the Bureau of Economic Geology; State Geologist of Texas; Geosciences Professor at The University of Texas at Austin

Christine Clayburg

CEO of Radial Pictures

Perilous Planet