![LOS ANGELES - SEP 18: Tracy Caldwell Dyson at the Ad Astra Premiere at the ArcLight Theater on September 18, 2019 in Los Angeles, CA Stock Photo - Alamy LOS ANGELES - SEP 18: Tracy Caldwell Dyson at the Ad Astra Premiere at the ArcLight Theater on September 18, 2019 in Los Angeles, CA Stock Photo - Alamy](https://c8.alamy.com/comp/2CAMYA7/los-angeles-sep-18-tracy-caldwell-dyson-at-the-ad-astra-premiere-at-the-arclight-theater-on-september-18-2019-in-los-angeles-ca-2CAMYA7.jpg)
LOS ANGELES - SEP 18: Tracy Caldwell Dyson at the Ad Astra Premiere at the ArcLight Theater on September 18, 2019 in Los Angeles, CA Stock Photo - Alamy
![Future of Space STEM event NASA astronaut Tracy Caldwell Dyson, moderates a panel discussion with NASA Administrator Jim Bridenstine, NASA Associate Administrator for the Human Exploration and Operations Mission Directorate, Bill Gerstenmaier, Future of Space STEM event NASA astronaut Tracy Caldwell Dyson, moderates a panel discussion with NASA Administrator Jim Bridenstine, NASA Associate Administrator for the Human Exploration and Operations Mission Directorate, Bill Gerstenmaier,](https://c8.alamy.com/comp/2BP30G4/future-of-space-stem-event-nasa-astronaut-tracy-caldwell-dyson-moderates-a-panel-discussion-with-nasa-administrator-jim-bridenstine-nasa-associate-administrator-for-the-human-exploration-and-operations-mission-directorate-bill-gerstenmaier-and-nasa-deputy-associate-administrator-for-exploration-steve-clarke-at-the-quotfuture-of-spacequot-stem-event-monday-april-29-2019-at-nasa-headquarters-in-washington-where-college-students-were-able-to-ask-the-panelists-questions-as-well-as-speak-with-two-astronauts-currently-on-the-international-space-station-nick-hague-and-christina-koch-2BP30G4.jpg)
Future of Space STEM event NASA astronaut Tracy Caldwell Dyson, moderates a panel discussion with NASA Administrator Jim Bridenstine, NASA Associate Administrator for the Human Exploration and Operations Mission Directorate, Bill Gerstenmaier,
![NASA Astronaut Tracy Caldwell Dyson and her husband George Dyson attend the world premiere for The Martian at the Toronto International Film Festival at the Roy Thomson Hall September 11, 2015 in NASA Astronaut Tracy Caldwell Dyson and her husband George Dyson attend the world premiere for The Martian at the Toronto International Film Festival at the Roy Thomson Hall September 11, 2015 in](https://c8.alamy.com/comp/F274H9/nasa-astronaut-tracy-caldwell-dyson-and-her-husband-george-dyson-attend-F274H9.jpg)
NASA Astronaut Tracy Caldwell Dyson and her husband George Dyson attend the world premiere for The Martian at the Toronto International Film Festival at the Roy Thomson Hall September 11, 2015 in
![Jessica Chastain and Astronaut Tracy Caldwell Dyson discuss "The Martian" movie on Daily Planet - YouTube Jessica Chastain and Astronaut Tracy Caldwell Dyson discuss "The Martian" movie on Daily Planet - YouTube](https://i.ytimg.com/vi/UriqS1whAVc/maxresdefault.jpg)
Jessica Chastain and Astronaut Tracy Caldwell Dyson discuss "The Martian" movie on Daily Planet - YouTube
![Dr. Karen James on Twitter: "Same woman, different contexts. Astronaut Tracy Caldwell Dyson. (h/t @MartianMovie @datachick for 1st, @nasa for 2nd) http://t.co/vVDgPyw7Ko" / Twitter Dr. Karen James on Twitter: "Same woman, different contexts. Astronaut Tracy Caldwell Dyson. (h/t @MartianMovie @datachick for 1st, @nasa for 2nd) http://t.co/vVDgPyw7Ko" / Twitter](https://pbs.twimg.com/media/COqjeVkWoAAngdi.png)