![Mark Vande Hei looks happy, smiling at the camera in a navy blue t-shirt, purple surgical gloves, and metal-rimmed glasses. Aboard the ISS, he holds the Advanced Nano Step Cartridge in the Solution Crystallization Observation Facility during installation.](https://www.nasa.gov/wp-content/uploads/2023/03/iss053e039947_orig.jpg)
Astronaut Mark Vande Hei
“When NASA hired me to be an astronaut, I had a lot of imposter syndrome going on. It was as if I was braced for someone to realize they had made a mistake hiring me. I love my job at NASA." – Mark Vande Hei, Astronaut, NASA's Johnson Space Center
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https://www.nasa.gov/image-detail/astronaut-mark-vande-hei/
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