NASA Science: "What Can Astronaut Spit Tell Us?" | International Space Station

NASA Science: "What Can Astronaut Spit Tell Us?" | International Space Station

What can astronauts’ saliva tell us about the innerworkings of the human body during spaceflight? Aboard the International Space Station, NASA astronaut Jonny Kim demonstrates how a small task—like collecting saliva samples—can provide big insights, keeping crews healthy as we prepare for missions to the Moon and beyond.

Learn more about NASA’s Human Research Program: www.nasa.gov/hrp

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https://blogs.nasa.gov/spacestation/

Expedition 73 Crew

Station Commander: Sergey Ryzhikov (Roscosmos)

JAXA Flight Engineer (Japan): Kimiya Yui

Roscosmos (Russia) Flight Engineers: Alexey Zubritskiy, Oleg Platonov

NASA Flight Engineers: Jonny Kim, Zena Cardman, Mike Fincke

An international partnership of space agencies provides and operates the elements of the International Space Station (ISS). The principals are the space agencies of the United States, Russia, Europe, Japan, and Canada.

Credit: NASA Science
Duration: 1 minute, 31 seconds
Release Date: Sept. 16, 2025

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