Sandra Magnus

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

Tim Peake

Solider, Pilot, Parent, Astronaut

Serena Auñón-Chancellor

NASA Astronaut & Associate Professor of Clinical Medicine at Louisiana State University Health Sciences Center

Athena Brensberger

Science Communicator and International Model

Mike Massimino

Astronaut, Columbia Professor, Media Personality & Author

Dianne McGrath

Researcher, Consultant & Mars One Astronaut Candidate

John Herrington

Former NASA Astronaut, First Native American in Space, Educator & Story-Teller

Col. Nicole Malachowski, USAF (Ret.)

Combat Veteran, First Female Thunderbird Pilot, White House Fellow & Advisor

Terry Virts

Former NASA Astronaut & Colonel in the United States Air Force; Photographer for National Geographic Book "View From Above"

Aprille Ericsson

Rocket Scientist, Technologist & STEM Educator

Conversation with Dolores Huerta, Danielle Feinberg, Aprille Ericsson

Dottie Metcalf-Lindenburger

Former NASA Astronaut; Educator & Earth Scientist

Wendy Lawrence

Retired United States Navy Captain, Engineer, Former Helicopter Pilot & NASA Astronaut, Advocate for STEM Education

Yvonne Cagle

NASA Management Astronaut & Retired U.S. Air Force Colonel

Dr. Yvonne Cagle at the USA Pavilion

Emily Calandrelli

Aerospace Engineer; Host & Producer of FOX's "Xploration Outer Space"

Peggy Whitson

NASA Astronaut; NASA's Most Experienced Female Astronaut; Biochemistry Researcher

Cady Coleman

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

Robert Curbeam

Former NASA Astronaut & Retired Captain in the U.S. Navy; Record Holder for Most Spacewalks During a Single Spaceflight

Daniel Tani

NASA Astronaut & Engineer

Garrett Reisman

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

Leland Melvin

Engineer, Former NASA Astronaut & Former NFL Wide Receiver

NASA astronaut Leland Melvin teaches kids about Webb telescope ...