
iss064e020142 (Jan. 5, 2021) --- Expedition 64 Flight Engineer and NASA astronaut Kate Rubins loads engineered heart tissue samples into a science freezer for preservation and later analysis. The science freezer, located in the Japanese Kibo laboratory module, is known as the Minus Eighty-Degree Laboratory Freezer for ISS (MELFI) and maintains experiment samples at ultra-cold temperatures throughout a mission.
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iss064e020142
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January 5, 2021
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