Cady Coleman

Former NASA Astronaut; Retired U.S. Air Force Officer & Chemist

Garrett Reisman

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

John M. Grunsfeld

Physicist & Former NASA Astronaut

Jessica Meir

NASA Astronaut, Marine Biologist & Physiologist; One of the First Women to Participate in An All-Female Spacewalk

Kristen Facciol

Operations Engineer & NASA Flight Controller; Supports Robotics Operations on the International Space Station

Abigail Harrison

Founder of The Mars Generation, STEM Advocate, Internet Personality & Aspiring Astronaut

Aprille Ericsson

Rocket Scientist, Technologist & STEM Educator

James Green

Director of Planetary Science at NASA Headquarters

Susan G. Finley

Longest-Serving Woman in NASA, Employee of NASA's Jet Propulsion Laboratory (JPL)

Alan Stern

Engineer, Planetary Scientist & Author

Mikhail Kornienko

Russian Cosmonaut

David Wolf

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

Ellen Stofan

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

Will Marshall

Co-Founder & CEO of Planet Labs

Karen L. Nyberg

Mechanical Engineer & NASA Astronaut; 50th Woman in Space

Joseph Acaba

NASA Chief Astronaut; First Person of Puerto Rican Heritage Named as a NASA Astronaut Candidate

Learn About Astronaut Joe Acaba (a.k.a. “The Prince of Puerto Rico”)

Sunita Williams

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

Dr. Phil Plait

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

John “Danny” Olivas

Former NASA Astronaut & Mission Assurance Expert; Co-Director of the Visual Intelligence & Multimedia Analytics Laboratory at the University of Southern California

Mary Ellen Weber

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

Soichi Noguchi

Japanese Aeronautical Engineer & Astronaut; President of Mirai Space Co.

Sian Proctor

Astronaut, Afrofuturism Artist & Geoscience Professor at the Maricopa Community Colleges

Dr. Sian Proctor on pushing through adversity, making it to space

Erik M. Conway

Historian at NASA's Jet Propulsion Laboratory

Jonathan Arenberg

Chief Mission Architect for Science & Robotic Exploration at Northrop Grumman Space

Sandra Magnus

American Engineer and Former NASA Astronaut; Principal at AstroPlanetview, LLC

Serena Auñón-Chancellor

NASA Astronaut, Associate Professor of Clinical Medicine at Louisiana State University Health Sciences Center & Program Director for Aerospace Medicine Residency Program at UTMB

Elsa Shiju

Aspiring Astronaut, Space Enthusiast & Speaker

Victor J. Glover

NASA Astronaut-Captain, U.S. Navy

A child's dream to 'drive' a space shuttle propels him toward a historic NASA mission

Megan McArthur

NASA Astronaut

Risa Wechsler

Astrophysicist & Cosmologist