Astronaut Takuya Onishi inserts blood samples into a science freezer

iss072e861307 (March 27, 2025) --- JAXA (Japan Aerospace Exploration Agency) astronaut and Expediion 72 Flight Engineer Takuya Onishi 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.