American astronaut Chris Cassidy of York, Maine. NASA photo
YORK — Maine astronaut and former Navy SEAL Chris Cassidy announced he’s retiring Friday after 28 years of service.
Cassidy, who returned to Earth from the International Space Station in October 2020, spent 17 years with NASA and made three separate voyages to the space station, spending 378 days in space.
“It’s been an amazing run. I’ve so many wonderful opportunities both on the ground, in the air and in space — and underwater,” he said Thursday in a video posted on Twitter after a final underwater session in the neutral buoyancy laboratory at Johnson Space Center in Houston.
Cassidy was born in Salem, Massachusetts, but considers his hometown to be York, Maine, where he attended high school.
He served 28 years in the Navy and was in the SEALs for 11 years. He made four six‐month deployments: two to Afghanistan, and two to the Mediterranean, according to his NASA bio.
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