Astronaut Don Pettit stows plant samples inside a science freezer

iss072e404007 (Dec. 27, 2024) --- NASA astronaut and Expedition 72 Flight Engineer Don Pettit stows plant samples inside a science freezer aboard the International Space Station's Destiny laboratory module. Also called MELFI, or the Minus Eighty-Degree Laboratory Freezer for ISS, the cold stowage research device preserves experiment samples at ultra-cold temperatures in microgravity for later return to Earth and analysis.