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Astronaut Nichole Ayers inserts blood samples into a science freezer
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Astronaut Nichole Ayers inserts blood samples into a science freezer

NASA / JSC · 2025-03-20 · photograph (digital archive)

From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.

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iss072e808609 (March 20, 2025) --- NASA astronaut and Expedition 72 Flight Engineer Nichole Ayers inserts a cryogenic storage unit, called a dewar, containing blood samples collected from a crew member into a science freezer for preservation and later analysis. The Minus Eighty-Degree Laboratory Freezer for International Space Station, or MELFI, is a research freezer that maintains experiment samples at ultra-cold temperatures in microgravity.

NASA Image and Video Library’s own description
Credit lineAstronaut Nichole Ayers inserts blood samples into a science freezer. NASA/JSC, 2025-03-20. Public domain. ID: iss072e808609.
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