NASA astronaut and Expedition 71 flight engineer Matthew Dominick gives a behind-the-scenes look at the International Space Station’s airlock. Astronauts are scheduled to put on their spacesuits and work outside of the space station three times this summer, and Dominick demonstrates how he is helping to size the spacesuits while demonstrating some of their capabilities.

Dominick became a NASA astronaut in 2017. He is from Wheat Ridge, Colorado, and earned a bachelor’s degree in electrical engineering from the University of San Diego, California, and a master’s in systems engineering from the Naval Postgraduate School in Monterey, California. He is an active-duty U.S. Navy astronaut. He flew to the space station as commander of NASA’s SpaceX Crew-8 mission. This is his first spaceflight.

For more on the upcoming spacewalks, follow the space station’s blog: https://blogs.nasa.gov/spacestation/