Dr. Kjell Lindgren - Leave No Trace Board of Directors

Dr. Kjell Lindgren

Dr. Kjell Lindgren is a NASA astronaut and physician who has spent a total of 311 days in space across two missions, including Expedition 44/45 and as commander of NASA’s SpaceX Crew-4 mission. He currently serves as the Deputy Director of the Flight Operations Directorate at Johnson Space Center, where he leads the execution of NASA’s human spaceflight mission. Born in Taipei, Taiwan, into an Air Force family, Dr. Lindgren completed his education with an undergraduate degree from the U.S. Air Force Academy and a Doctorate of Medicine from the University of Colorado. He is residency trained in both in emergency and aerospace medicine. He joined NASA as a flight surgeon in 2007 and served as the Deputy Crew Surgeon for STS-130 and Expedition 24. He was selected as an astronaut in June 2009 as a member of “the Chumps,” the 20th NASA astronaut class. Inspired by the orbital perspective, Kjell has pursued opportunities to be a better steward of humanity’s spaceship, Earth. As an assistant scoutmaster for his sons’ scout troop, he teaches outdoor ethics and conservation. He is a Leave No Trace Trainer, a nature center volunteer, and a Texas Master Naturalist.
Earth Month graphic

Commit to learning, practicing, and sharing Leave No Trace this April. It takes 30 seconds and helps protect the places you love.

Care for the Outdoors?
Start Here.

Join our email list for Leave No Trace tips, research, and ways to put outdoor ethics into action—on the trail, at camp, and beyond.