After 141 days in the isolation and order of the International Space Station, Dr. Kjell Lindgren spent Wednesday afternoon with squirming children and their families at Hennepin County Medical Center, where the doctor-turned-astronaut completed his medical residency a decade ago.
Reading a book about a mouse who goes into space to an audience of pediatric patients and other children, Lindgren encouraged them to pursue their dreams.
"I was about your age when I decided I wanted to become an astronaut," he told them.
The visit was part of a U.S. homecoming tour for Lindgren since his December 2015 return from the space station. During the mission, Lindgren operated a robotic arm that launched a satellite and repaired equipment, completed two spacewalks to maintain a meter that measures cosmic rays and the station's temperature control system, and studied the effect of time in space on plants and humans. He was part of the first U.S. crew to eat a vegetable (lettuce) grown in orbit.
Lindgren used his Twitter account to engage with people on Earth during his mission — showing images of how he exercised, making references to Star Wars and playing bagpipes in space for what is believed to be the first time in history.
His account @astro_kjell also shared breathtaking images of Earth, briefly creating a Twitter fight when he posted an overhead view of Minneapolis only. He addressed that four days later after the station passed back over the Midwest.
"I sensed some sibling rivalry from Tuesday's post," he said in a tweet from the station that accompanied a new picture. "Here's the twin! Good morning St. Paul!"
Lindgren served on the station with Scott Kelly, who is part of a study examining the varying effects of space on identical twins. Kelly's brother, who previously served on the station, wrote the book "Mousetronaut," which Lindgren brought to HCMC to read, along with replica stickers of his mission badge to hand out.